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November 13, 2018
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July 30, 2018
Small Round Rainwater Tanks under 10,000 litres.

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July 30, 2018
Large Round Rainwater Tanks over 10,000 litres.

Event AgQuip

July 27, 2018
Register for discount voucher for AgQuip event. AgQuip is Australia’s largest and premier primary industry field days and one of the largest agricultural events in the world. The nation’s biggest agricultural event showcases over 3,000 individual companies and attracts over 100,000 visitors from across the nation and overseas. The event runs over three days, Tuesday […]

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July 13, 2018
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July 13, 2018
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Raw Moulding Materials

July 10, 2018
The polyethylene used in National Poly Industries’ products are sourced from Australian natural gas that is processed and compounded to include colour, UV inhibitors and other additives. Polyethylene is classified as a safe material by the National Occupational Health and Safety Committee. The poly pellets used in the manufacturing process are considered to be environmentally […]
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Water Tank Installation

July 6, 2018
Correct preparation is essential to ensure a long and trouble-free life for your water tank. Base Preparation Our poly tanks are very strong, but it is nonetheless important to have your tank standing on a flat level compacted base. This can be a concrete slab or crusher dust, but not sand. The base of your […]
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Why Weight Determines Value and Strength in Poly Tanks

June 15, 2018
In a previous article, we saw how the raw materials of a tank often differ in quality despite being named the same general material, for example, different grades of steel and poly mixes. This is one identifiable factor in higher and lesser quality tanks. What determines the value and strength of poly tanks though? This article aims […]
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What is Your Water Tank Warranty Really Worth?

June 15, 2018
When investing in something large or costly you want to know that it will last. Every brand and business will always guarantee a quality product, but we often discover that this is not actually the case. So as a consumer, it is always reassuring to have a warranty that can be claimed upon just in […]
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What is Suction Pressure on Water Tank Pumps?

June 15, 2018
If you’re reading this article, then you are likely investigating what water pump to get. You know that you need a pump to pressurise water to where you need it throughout your property or around your home, so then why do pumps list suction pressure? Suction may just be something you hadn’t considered, especially if […]
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Poly Water Tank Models – Shapes and Sizes

June 15, 2018
  When it comes to selecting a rainwater tank to purchase you’ll need to choose a particular model type. If you have open spaces on your property, then maybe a large round water tank will be fine. On the other hand, if you don’t have much space then a slimline tank or two joined together might work […]
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Water Supply Requirements for Fire Fighting in Queensland Bushfire Prone Areas

June 15, 2018
  Queensland is notorious for its bushfires with the fire season typically being between August and January. In the 2002 to 2003 fire season, 2800 bushfires scorched 8 million hectares. At the end of December 2013, hundreds of campers and visitors lapping up the sun on North Stradbroke Island had to be evacuated due to bushfires. Queensland […]
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Verifying Australian Tank Standards Compliance

June 15, 2018
Many rainwater tank suppliers often state their poly tank materials comply with the AS/NZS 4766 (“Polyethylene Storage Tanks for Water and Chemicals”). If a company claims their poly tanks are certified to the AS/NZS 4766, this does not guarantee that yours will be. This is because it is actually left up to the manufacturer to ensure quality […]
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Why Screening Your Rainwater Tank is Important

June 15, 2018
  In order to collect rainwater and use it as part of your property’s water system, your rainwater tank needs to have several holes. These generally consist of: Inflow – a hole in the top of your rainwater tank where the water flows in from piping attached to your roof Overflow – a hole at the top […]
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Using Settling Tanks to Improve Your Water Quality

June 15, 2018
When harvesting rainwater from your roof, a dam or river, or an underground bore, it is possible to increase the water quality through utilising two or more tanks. This article will examine settling tank systems – what they are and the benefits they can provide to the quality of water stored in your tank. What is a Settling […]

Using Pressure Tanks in Your Rainwater System

June 15, 2018
If you have installed a rainwater harvesting system, then you’ll know that one of the most important things to get right is having good water pressure coming from your tank into your home. While National Poly Industries provide pump pressurised systems, another less known option you might want to look into is having a pressure tank. How Pressure Tanks Work Pressure tanks work […]
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Poly Tanks vs Steel Tanks – Strength and Durability Compared

June 15, 2018
In terms of durability, there is a belief circulated around that all poly water tanks will become brittle and break down in the Sun. After all, polymer is a plastic and we have all seen how plastic objects decompose and become powdery over time. This is similar to saying all steel will corrode in the […]
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Rotathene® SUPA UV Poly Tanks: Stress Testing Rainwater Tanks in Extreme Environments

June 15, 2018
Rotathene® SUPA UV Rotathene® SUPA UV provides superior protection for rotomoulded products by incorporating advanced additive technology. Traditionally a UV8 level of stabilisation has been considered the minimum required for good long term protection in Australia. This is the level specified in the Australian Tanks Standard, AS/NZS4766:2006. As seen in our article, Testing Poly Tank UV […]
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Steel vs Concrete vs Fibreglass vs Poly Tanks

June 15, 2018
Which Water Tank Material is Best? Rainwater tanks come in a lot of different sizes, shapes and materials. This article covers some advantages and disadvantages of the most commonly used materials in rainwater tanks. Decide for yourself which type of water tank best suits your needs. Fibreglass Water Tanks Fibreglass tanks need a food-grade coating to be […]
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National Water Tank Requirements: Rural and Semi-Rural Homes in Australia

June 15, 2018
If you live or have a property away from city areas, then you may need to carefully plan out your sources of water. Such might include rivers and dams, bore water or more obviously rainwater. Properties located in semi-rural regions generally have access to a reticulated water supply. Nonetheless, water tanks are clearly something that can help create sustainable water supply even in urban […]
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Water Tanks in Tamworth Region: State and Council Requirements for Residential Homes

June 15, 2018
The Tamworth Region, located in inland NSW (north-western), covers 9,653 square kilometres from the Nandewar Range north of Barraba, to the head of the Peel River and the Great Dividing Range. It has the charm of country living combined with a progressively city style and is estimated to have a population of over 58,000 people. […]
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Water Tanks in Wagga Wagga: State and Council Requirements for Residential Homes

June 15, 2018
Wagga Wagga is a vibrant regional city in Southern New South Wales, located midway between Sydney and Melbourne. Surrounded by impressive country landscapes and straddling the magnificent Murrumbidgee River, Wagga Wagga is the hub of the Riverina region with a population of 56,000 residents. If you live in Wagga Wagga, chances are that you will want […]
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Rotathene® SUPA UV – Making Tanks Built to Last

June 15, 2018
What is SUPA UV? Rotathene® provides a much higher level of protection against the Sun than the required industry standard for poly tanks. It is referred to as “SUPA UV” for this reason. Rotathene® SUPA UV provides superior protection for rotomoulded products by incorporating advanced additive technology to last 4.5 times more than the Australian […]
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Rainwater Assessment for BASIX Certification in NSW

June 15, 2018
Rainwater is arguably the best source of alternative water for achieving your BASIX (Building Sustainability Index) water target. It is recognised by the NSW government as being an important source of water sustainability. When lodging your assessment application online, BASIX will assess your rainwater based on the four following areas: Roof Catchment Area You will need to […]
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How to Leaf and Mosquito-Proof Your Water Tank

June 15, 2018
When you purchase a rainwater tank, and have it plumbed into your house, the last thing you want are leaves or mosquitoes contaminating your tank water. In a previous article we mentioned how rainwater diverters can help to collect cleaner water in an efficient manner. They play an important role in filtering dirty rainwater that may otherwise […]
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Plumbing Requirements for Water Tanks in New Homes

June 15, 2018
  When installing a rainwater tank and you want to use your harvested water throughout your house, then you will obviously need some plumbing work carried out. Such as: fitting downpipes from your roof to your tank connecting your tank overflow to a stormwater system connecting your tank to a pressure pump, etc. Depending on your location and […]
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Partially or Fully Burying Poly Water Tanks

June 15, 2018
Burying a water tank is sometimes desirable to reduce their height, or placing them completely underground if you don’t have much surface space. Poly water tanks are the ideal solution, since steel tanks obviously can’t be buried since they will rust and corrode. This article will reveal what you need to know if you wish […]
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Multiple Poly Tanks for Large Water Storage Requirements in Farming

June 15, 2018
Many are familiar with the use and installation of individual water storage tanks, but the setup of multiple storage tanks in a rainwater harvesting system often isn’t considered. The use of multiple water tanks in larger scale water storage endeavours is neither difficult nor uncommon. This article looks at some benefits of linking multiple poly […]
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Maximising Water Captured in Storage Tanks During Rainfall and Storms

June 15, 2018
Hotter Australian temperatures mixed with ever increasing populations places greater demand on our mains water supply. This in turn creates pressure for water authorities to identify and tap into alternative water sources, often resulting in higher expense to consumers. Rainwater tanks obviously allow you to harvest water freely from the sky. This makes them an appealing source […]
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Main Fittings and Accessories for Your Rainwater Tank System

June 15, 2018
In addition to your rainwater tank, there are other plumbing parts and accessories you will need to set up. If you are installing a rainwater tank for the first time in a new home, then chances are you will have little to no idea about what you need. This article will help you understand the […]
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Is it Safe to Drink Rainwater from Water Tanks?

June 15, 2018
No one wants to drink water that could potentially harm them or their family. So it is quite understandable then that a commonly asked question is whether it truly is safe to drink rainwater stored in your water tank. According to the NSW government’s BASIX website, rainwater stored in a tank is usable for flushing toilets, […]

How to Prepare for Your Rainwater Tank

June 15, 2018
National Poly Industries specialise in polyethylene tanks and in this article it will be presumed that you are looking to install one of our round poly rainwater tanks. So you’ve decided to invest in a National Poly rainwater tank. Congratulations! You won’t be disappointed in your choice of our poly tanks – some of the lightest, highest […]
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How to Maintain Drinking Water Quality in Your Rainwater Tank

June 15, 2018
This article is a summary guide on how you can maintain safe and fresh tasting rainwater compiled from the advice of Australian federal and state governments. Rainwater from your roof is a valuable resource and safe to drink when stored in a safe, properly installed and maintained rainwater tank. If you will be using your […]
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How To Efficiently Collect Clean Rainwater With Diverters

June 15, 2018
The traditional system of harvesting rainwater generally consists of a gutter attached to a roof that channels rainwater into a storage tanks. One innovation to this basic system is the downpipe diverter. This device functions by directing the first litres of dirty rainwater into a water chamber. This chamber normally holds about 8-15 litres of […]
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How to Clean Sludge Out of a Rainwater Tank

June 15, 2018
As part of proper tank maintenance procedures, it is often advised that tanks be inspected inside for sediment build-up at least every two years. This article examines tank sludge, how it gets in your tank and more importantly how you can clean it out should you find it in the bottom of your tank. What […]
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Is Tank Sludge Harmful to Rainwater Quality?

June 15, 2018
If you own a rainwater tank, proper tank maintenance procedures recommended by the Australian Health Department include inspecting inside your tank every 2-3 years for sediment build-up. This sediment build-up is normally comprised of organic matter such as leaves which turns into a slimy biofilm layer at the bottom of your tank called “sludge.” Many automatically assume […]
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How to Clean Inside Your Rainwater Tank

June 15, 2018
You want to ensure the rainwater collected in your tank remains clean and fresh, especially if used for washing, cleaning or drinking. Properly maintaining the water quality in your tank also extends the life of your tank pump, water filters and household appliances plumbed into your rainwater. If you have had a rainwater tank for several years, […]
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How to Choose Your Water Tank Colour

June 14, 2018
When choosing your rainwater tank, there are a number of things to consider. The more obvious things are what water tank material you should go for, and what size water tank do you need. Most choose food-grade poly rainwater tanks due to their strength, light weight and reasonable price. An advantage to poly tanks is […]
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How to Choose the Right Water Tank Size

June 14, 2018
There are two approaches that you can take when determining the size of rainwater tank that you need. You will need to decide for yourself which approach is most suitable. Approach #1: The Bigger The Better We have obviously all heard this phrase, when it comes to rainwater tanks. Many in the industry recommend buying […]
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Australian Standards for Poly Water Tanks and Installations

June 14, 2018
When looking to buy a rainwater tank you’ve probably heard “Australian Standard (AS)”this, “Australian/New Zealand Standard (AS/NZ)” that with an “International Standard (ISO)” mentioned also – but what do they all mean? Standards compliance provides you with some assurance that the product or service you are buying is safe, reliable and of good quality. You might think that Australian […]
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How Australian Standards Apply to Poly Water Tanks and Installations

June 14, 2018
There are a number of Australian Standards that you should be aware of when shopping for a new poly rainwater tank: AS 2070 Plastics materials for food contact use AS/NZS 3500 Plumbing and drainage AS 3688 Water supply – Metallic fittings and end connectors AS/NZS 4020 Testing of products for use in contact with drinking water AS/NZS 4130 […]
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Why is Stormwater Detention Important for New Homes?

June 14, 2018
  If you are building a new home, there are a number of requirements that your local council might require you to meet. Depending on where you are located, one requirement might be for stormwater detention. This article is the third in a series of articles exploring the topic of stormwater and the importance of stormwater detention in […]
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What is the Difference Between Stormwater and Rainwater?

June 14, 2018
  If you are building a new home, there are a number of requirements that your local council might require you to meet. Depending on where you are located, one requirement might be effective stormwater planning and installation of a stormwater tank. This article is the first in a series of articles exploring the topic […]
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What are Stormwater Detention Tanks: Differences to Water Retention Tanks

June 14, 2018
If you are building a new home, there are a number of requirements that your local council might require you to meet. Depending on where you are located, one requirement might be effective stormwater planning and installation of stormwater detention tank. This article is the second in a series of articles exploring the topic of stormwater […]
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Maintain Quality Drinking Water with a Tank Self-Cleaning System

June 14, 2018
If you have a concrete or poly water tank, then you might be interested to know that a solution exists to keep the bottom of your water tank clean and free of sludge. What is sludge? Sludge is a mixture of sediment, bits of leaves and debris that manage to find their way into your […]
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Choosing the Right Pressure Pump for Your Rainwater Tank

June 14, 2018
If you are looking to install a rainwater tank, then you probably at least intend to use it for watering your garden, washing your clothes, cleaning your car, filling your pool and the like. You might also wish to have fresh, crisp rainwater on tap for cooking and drinking. This all means you will need […]
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Understanding Water Pump Rated, Maximum and Normal Flow Rates

June 14, 2018
If you a looking to select the best water pump for your rainwater tank then you will see specifications like rated and maximum head and flow rates. What do they mean? What should you look for? Will the pump be adequate for your needs? The focus of this article will explore the question of rated and maximum […]
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Choosing a Water Pump for Your Rainwater Tank

June 14, 2018
If you want access to your rainwater from different locations around your property, then you will need a water pump. Choosing the right pump might seem like a difficult decision, but this article is intended to give you a better understanding of pumps to help make your decision easier. Water Pump Considerations There are a […]
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What Does Water Pump Maximum and Rated Head Mean?

June 14, 2018
If you a looking to select the best water pump for your rainwater tank then you will see specifications like rated and maximum flow rates or head. What do they mean? What should you look for? Will the pump be adequate for your needs? The focus of this article will explore the question of rated and maximum […]
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Collecting Safe and Drinkable Rainwater from Your Rooftop

June 14, 2018
Rainwater is a valuable resource and safe to drink as long as proper steps are taken to ensure the different components in your rainwater harvesting system are safe and installed correctly. This includes the materials your tank is made from and how it is plumbed into your house. Another important component to your water quality is the catchment area that […]
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Proper Water Tank Maintenance for Drinkable Rainwater

June 14, 2018
  Rainwater from your roof is a valuable resource and safe to drink when stored in a properly installed and maintained food-grade rainwater tank. NSW Health stresses the importance of a properly maintained rainwater tank for good quality drinking water. In urban areas, they recommend mains water because often people either do not know how to maintain their […]
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Plumbing in Your Rainwater Tank for Safe Drinking Water

June 14, 2018
  When it comes to having fresh-tasting rainwater many consider the safety of the water storage materials without much thought to actual plumbing in of their tank. To make certain your water remains of a high quality you need to be on top of your tank fittings, connections and pipes. Safe Tank Fittings and Piping Ensuring safe […]
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Choosing a Safe Water Tank for Drinkable Rainwater

June 14, 2018
Rainwater is one the highest quality sources for drinking water if collected and stored properly. So the type of material used to manufacture your water storage tank makes a big difference to the water quality you will experience. Water Tank Materials Water tanks can be constructed from a wide range of materials including polyethylene (plastic), […]
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Performing a Water Audit to Assess Your Farm Water Requirements

June 14, 2018
  Careful water planning is essential before investing in your farm and costly constructions. If you have a property in rural Australia used for farming, then you will likely discover that you have no access to a mains water supply. Good planning means performing a detailed water audit to know where your water will be […]
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Calculating Livestock Water Requirements for Your Farm

June 14, 2018
If you work a farm with livestock, planning for your necessary stock water is just as important as feed supplies. Ensuring your stock has adequate water at all times, especially during the hot Australian summer when livestock require more water, is evidently important. To correctly plan requires knowing your properties’ water sources, how much water […]
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Benefits of Harvesting Rainwater in Water Tanks

June 14, 2018
  Water is a precious resource that covers 71% of Earth’s surface. It moves continually through the water cycle of becoming a vapour through evaporation and transpiration, transforming into water through to condensation in the Earth’s atmosphere, and then once condensed into water falling back to earth via rain (precipitation). Rainwater is a pure form of […]
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Rainwater Tank Stands: Benefits and Considerations

June 14, 2018
Many people do not realise that their rainwater tank can be placed upon a stand. Stands for rainwater tanks can add a bit more style and provide a practical solution to some challenges that might arise when installing a water tank. This article takes a look at some benefits a water tank stand provides and […]
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Assessing Property Space for Large Water Storage Tank Requirements

June 14, 2018
When buying a rainwater tank, it is important to consider how much space you have on your property and where it will be sited. In most cases, space limitations can be overcome for large storage requirements. This article will look at some solutions for larger water storage capacities within limited property space. In another article, we investigated options for fitting in […]
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How to Link Multiple Water Tanks to Increase Rainwater Harvesting Capacity

June 14, 2018
Before you invest in a new water tank to store rainwater, perform some careful planning and consider a system setup of linking two or more water tanks together. A multiple water tank setup for rainwater harvesting provides many benefits including: Multiple tanks can be more cost-effective Reduction of lost water in tank failure or water contamination Expandable […]
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Assessing Property Space for Small Water Storage Tanks (1,000–10,000L)

June 14, 2018
Many people do not realise how big water tanks can be, so it is important to first ensure your property will fit the dimensions of your water tank being purchased. Once you have considered the amount of rainwater you wish to capture, the next step to consider is where on your property the water storage tanks necessary can […]
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How Much Water Do Swimming Pools Lose Each Day?

June 14, 2018
Owning a swimming pool is a popular luxury many families love to have. Many find it refreshing to swim and float in their own private swimming area, kids especially love splashing around on the hotter days of the year – sometimes they can’t resist even the colder days! Ever thought about how much water is […]
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Calculating the Amount of Rainwater Capturable from Your Roof

June 14, 2018
Rainwater collected from the roofs of your house or sheds provides high quality water that can be a valuable source of drinking water. The volume harvestable is dependent upon your roof catchment area, but can be quite substantial over the course of a year. This article will help you to know how much rainwater you […]
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Calculating Your Family’s Water Usage Needs When Buying a Tank

June 14, 2018
When looking to install water storage it pays to know how much rainwater your home can harvest, as well as how much water your family consumes. This article will also explore different areas to consider, to better estimate your family’s water usage and decide on how much water storage is ideal. Average Australian Household Water Usage […]

Australian Standards

June 14, 2018
AS 2070-1999 Plastics Material for Food Contact Use The Australian Standard AS 2070 applies to the manufacture of the plastics materials (resins, granules and powders) and colorants for food contact use and describes procedures to be followed during the various stages of processing by manufacturers of plastics items for food contact. Adherence to this standard […]
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What are Submersible Pumps and Why Use One in Your Water Tank

June 14, 2018
If you haven’t really considered the water pump to get for your tank, then you are probably researching about pumps. Since you are reading this article you are probably also wondering what a submersible pump is? This article will clearly explain what a submersible pump is and when it is used enabling you to decide […]

ZINCALUME Steel Tanks

June 14, 2018
There are two types of ZINCALUME® steel. If you must get a rainwater tank in this material, then ensure you get the most recent generation. “Next Generation” ZINCALUME® steel (AM125) launched in August 2013 and lasts longer than older ZINCALUME® steel (AZ150). Both are normally used in roofing, but can be found in steel tanks. […]

SUPA UV Polyethylene Tanks

June 14, 2018
It is not true that all poly tanks are the same. Rotathene® poly provides a much higher level of protection against the Sun than the required industry standard for poly tanks. This is how it received its name “SUPA UV”. Rotathene® SUPA UV provides superior protection for rotomoulded products by incorporating advanced additive technology well […]

Stainless Steel Tanks

June 14, 2018
Stainless steel, also known as inox steel, will not readily corrode, rust or stain from water contact and moisture. The strength and durability of stainless steel makes it a desirable, yet it is also significantly more expensive option. Due to its expense it is normally used in products where both the strength of steel and […]

Polyethylene Tanks

June 14, 2018
Polyethylene is one of the most popular water tank materials today for many good reasons. Some main benefits include: poly tanks are strong, light-weight and more cost effective than alternative materials the flexibility of plastic allows for variety of styles and shapes poly tanks are easier to install due to their strength and lightness a […]

Galvanised Steel Tanks

June 14, 2018
Many steel water tanks are made of galvanised steel—a zinc coating that protects the steel from corrosion. These tanks can be built to hold capacities from about 30,000 litres to millions of litres of water making them a suitable solution for extremely large storage requirements. Galvanised steel tanks will rust and corrode over time as […]

Fibreglass Tanks

June 14, 2018
Fibreglass tanks are quite rare today, but require a food-grade coating to be up to Australian standards for storing drinkable water. Tanks made of fibreglass are often very stiff and rigid, but relatively thin and light making them quite brittle and prone to cracking. They also allow more light entry and often found in darker […]

Concrete Tank

June 14, 2018
Concrete tanks are quite strong and often long lasting. They are generally installed underground for commercial purposes, but can be used for residential use as well. Unfortunately, the introduction of reinforcing steel into concrete has created a new problem that affected the durability of concrete tanks. When embedded reinforced steel can corrode, causing concrete to crack and […]

AQUAPLATE Steel Tanks

June 14, 2018
AQUAPLATE® is BlueScope’s specially constructed steel for rainwater tanks with a 0.2mm polymer layer on at least one side, and normally a painted coating on the outside. This steel is what BlueScope recommend out of all their products for rainwater tanks. AQUAPLATE® which has ZINCFORM® G300S Z275 substrate or the thicker ZINCFORM® G300S Z450 steel layer. The steel […]
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What is a Rainwater First Flush Diverter?

June 14, 2018
  If you are looking to purchase a rainwater tank, then you have probably heard about other tank accessories you might need. One important accessory that helps to keep your rainwater clean is called a Rainwater First Flush Diverter, but what is it? A Rainwater First Flush Diverter functions by preventing the first few litres of rainwater from […]

Different Water Diverters Used in Rainwater Harvesting Systems

June 14, 2018
If you are installing a rainwater harvesting system, ensuring you have high-quality clean water is essential to the health of everyone that uses it. To make sure that the water going into your storage tank is the highest quality it can be, you can use water diverters. Diverters separate contaminated ‘first-flush’ water from fresh, clean rainwater which […]
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What are Dry Rainwater Harvesting Systems?

June 14, 2018
Dry rainwater harvesting systems are simpler than wet systems and provide a plentiful source of high-quality drinking water. In this article, we explain how Dry systems work, their advantages and how to ensure you install the system that matches your needs. How Dry Systems Work Dry systems work by using gravity to feed rainwater into a storage […]
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Water Sustainability Targets for New Homes in NSW

June 14, 2018
Rainwater is recognised by the New South Wales (NSW) state government as an important resource for water sustainability. As such, they often encourage or mandate the adoption of a rainwater harvesting system and better use of rainwater. BASIX (Building Sustainability Index) is a state-wide environmental planning initiative that applies to all residential dwellings in NSW and […]
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Water Supply Requirements for Fire Fighting in NSW Bushfire Prone Areas

June 14, 2018
Australia is a semi-arid country with hot, dry summers. As such, rural areas are particularly prone to bushfires — rural New South Wales is no exception. Homeowners, particularly those living in rural areas, need to consider this when planning and building their homes. In rural bushfire areas, an adequate water retention system for firefighting purposes […]
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Water Supply Requirements for Fire Fighting in Victorian Bushfire Prone Areas

June 14, 2018
Victoria has a sub-Mediterranean climate, and like the rest of Australia, experiences hot dry summers where bushfires are common and often devastating. Victoria is considered one of the highest bushfire risk areas in the world; the 2009 Black Saturday bushfires, which claimed 173 lives, and destroyed more than 2000 homes and 430,000 hectares of land, […]
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Using Rainwater Efficiently to Water Your Garden

June 14, 2018
If you live in an area that receives much rainfall all year round, then you may not even need to worry about watering your garden. For most though, there will be drier months of the year that require you to water your garden and lawn. Keep in mind that water sustainability covers how your water […]
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Water Tanks in Gympie Region: State and Council Requirements for Residential Homes

June 14, 2018
The Gympie region is found in South East Queensland approximately 2 hours north of Brisbane. With an area of 6,898 square kilometres, it offers picturesque experiences from the rolling hills and market villages of the Mary Valley, to quaint country towns of Kilkivan and Goomeri and pristine coastal areas of Rainbow Beach. Today it has […]
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Testing Poly Tank Sun Protection: Rotathene SUPA UV Polyethylene

June 14, 2018
What is SUPA UV? Rotathene® provides a much higher level of protection against the Sun than the required industry standard for poly tanks. It is referred to as “SUPA UV” for this reason. Traditionally a UV8 level of stabilisation has been considered the minimum required for good long term protection in Australia. This is the […]
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Benefits of a Rainwater to Mains Water Switch

June 14, 2018
  A rainwater to mains water switch is a highly recommended device that can be setup when plumbing in your rainwater to your house. Have you wondered what might happen if you have a power failure, and the pressure pump that delivers water from your tank into your house stops working? Or what if your […]
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Rainwater Tank Benefits of Linking Two or More Water Tanks

June 14, 2018
Calculating how much water you use or the amount of rainwater harvestable from your rooftop provides a reasonable estimate of what rainwater tank size you need. Instead of investing in one rainwater tank, did you know there are advantages with installing two or more tanks? This is especially true of poly water tanks. Better Price on Multiple Poly Water […]
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What are Wet Rainwater Harvesting Systems?

June 14, 2018
Wet rainwater harvesting systems can provide an aesthetically pleasing solution to your rainwater collection needs. With a little careful planning, they can provide a plentiful source of high-quality drinking water. In this article, we explain how wet systems work, the advantages of wet systems and how to ensure the system remains clean and robust. What […]

Automatic Rainwater to Mains Water Switches

June 14, 2018
Automatic Rainwater to Mains Water Switches help you to maximise the use of your rainwater supply by allowing you to prioritise rainwater to your plumbed in taps and only switching to mains water as a backup when your tank water is low. National Poly Industries supply Automatic Rain to Main Water Switches by Davey, Claytech […]
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BASIX: Achieve Targets with Rainwater Tanks

June 6, 2018
The Building Sustainability Index (BASIX) is a NSW Government initiative that aims to deliver equitable, effective water and greenhouse gas reductions across the state. BASIX applies to the development of all new homes and certain alterations and additions in New South Wales. Builders are assessed for BASIX compliance and require a certificate confirming compliance before […]

Water Tank Specifications

June 6, 2018
Our complete water tank specifications is provided below to help you select the right tank. Round Tanks Capacity Height (mm) Inlet Height (mm) Diameter (mm) Weight Qld NSW/ACT Qld NSW/ACT Qld NSW/ACT Qld NSW/ACT 1,000L (220G) 1,540 1,540 1,480 1,480 1,000 1,000 31 kg 31 kg 1,000L (220G) 1,900 n/a 1,900 n/a 870 n/a 40 […]

Product Catalogues

June 6, 2018
National Poly Industries have two different product catalogues depending upon your state. Downloads Queensland’s Product Catalogue (PDF 2.1 MB) NSW/ACT’s Product Catalogue (PDF 1.5 MB)

Water Tank Delivery

June 6, 2018
Prior to your rainwater tank being delivered, it is important to first prepare your tank site with a solid, level and compacted base. This will mean less hassle later trying to move your tank into position which can be difficult if your water tank is large. Tank Delivery Areas (access permitting) National Poly Industries Bundarberg […]

Custom Design Specifications

May 30, 2018
National Poly Industries’ specialised knowledge and diverse experience with the custom design and manufacture of poly tanks and parts is extensive. Many different industries benefit from our depth of expertise in specially constructing poly products – the marine industry with specially engineered products for search and rescue applications, water treatment plants with industrial tanks requiring […]

Water Treatment Storage

May 30, 2018
National Poly have manufactured custom storage solutions for water treatment plants across Australia. Through our distribution network, we draw from a wealth of knowledge in the fabrication of industrial tanks for treatment plants. Our staff understand the demands on companies to complete large projects within tight time frames while retaining high quality. Working with National […]

Mining Storage and Products

May 30, 2018
National Poly’s business network has given us a thorough understanding of the mining industry. The largest mining companies across Australia have experienced the quality production of our manufacturing facility and professional workmanship. We can help you with dosing tanks, large industrial tanks and flanges along with other fittings required in special mining operations. Our service […]

Liquid Fertiliser Storage Tanks

May 30, 2018
National Poly is a major supplier of storage tanks for liquid fertiliser storage and also supplies the agricultural industry with molasses tanks and chemical storage solutions. Our business network has close relationships with some of Australia’s largest fertiliser suppliers. As a result we draw from extensive experience with custom-engineering fertiliser tanks according to specific needs. […]

Chemical Storage Tanks

May 30, 2018
National Poly supply an extensive range of chemical storage tanks from 1,000L to 37,200L. Your tank can also be customised to suit your need. Manufactured to specific gravities of SG 1.5 up to SG 2, our chemical storage tanks are suitable for storing most liquid including dangerous goods chemicals. With over 20 years experience, our […]

Industrial Tanks

May 30, 2018
We can supply you with a wide range of industrial tanks from 1,000L up to 37,200L that are customisable with a variety of fittings. NPI Industrial is a manufacturer with the expertise to promptly evaluate your needs and deliver the right solution? Our experience comes from over 20 years delivering polymer products for industrial applications. […]

Industrial and Commercial Products

May 30, 2018
The NPI Industrial team are a specialised consulting service whose collective experience spans decades and offers a depth of expertise and strength in customer service for the supply of custom fitted industrial tanks for industrial water storage, water retention & detention, water treatment plants, chemical storage & processing, liquid feed and liquid fertilizer transport & […]

Terms and Conditions of Sale

May 28, 2018
Terms of Sale Print Version1. DEFINITIONS AND INTERPRETATION 1.1 Definitions In these terms and conditions, unless the context otherwise requires: “Application” in relation to a Buyer means the Credit Account Application signed by the Buyer which refers to these terms and conditions. “Consequential Loss” means, in connection with a breach of these terms and conditions […]

Industrial Tank Warranty Conditions

May 28, 2018
After our standard water tank warranty? View Water Tank Warranty. About This Warranty Industrial Warranty Print Version 1. National Poly Industries PTY LTD ABN 52107251267 warrants that, subject to the terms of this warranty, it will either, at its sole discretion, replace or repair any industrial tank affected by a defect or fault caused by […]

Plastic Moulding Methods

May 28, 2018
National Poly Industries specialise in rotational moulding, commonly known as rotomoulding. Some other moulding methods include injection moulding, blow moulding and compression moulding to name a few. Each have their place, but for large and custom moulded plastic products we believe rotomoulding is by far the best solution. It is an invaluable option which every […]

Mould Fabrication (Tooling)

May 28, 2018
There are many advantages that rotomoulding provides including a superior product and the potential to manufacture very large items. Another benefit are the costs associated with fabricating moulds, which can be remarkably inexpensive. Known as tooling, moulds can be cast, machined or fabricated by hand. They are usually made from materials that are good conductors […]

Rotomoulding Process

May 28, 2018
Before the rotomoulding process begins there are several preparation steps. Product design – you need to know what you are making, the grade of plastic material required and design techniques necessary to achieve a successful product. Create the mould – also knowing as tooling, moulds typically constructed from aluminium or steel that transmit heat. Setup […]

Rotational Moulding

May 28, 2018
Choose National Poly Industries for your once off projects or ongoing project rotomoulding work. Design Your Own Product Do you have poly product that you need made? Consult with us to optimise your design, fabricate moulds and bring it to life. Find out more Rotomoulding Process Rotational moulding is a process that involves heating a […]

Water Usage Calculator

May 28, 2018
Total Litres per day: 0 Total Litres per year: 0 Inside Water Usage Water Use Quantity Water Consumption L/day L/year Shower 10L/minute Bathtub 150L     Dishwasher 30L/load Front Load Washing Machine 80L/load Top Load Washing Machine 100L/load Brushing Teeth with tap running 5L/minute Drinking, Cleaning, Cooking/person 10L/day/person Hand Basin Use 5L/time Toilet Flush single […]

Downpipe Rainwater Diverters

May 25, 2018
  Downpipe first flush water diverters improve water quality and reduce tank maintenance by preventing the first flush of water, which may contain roof contaminants, from entering the tank. The first flush water diverter is installed at the gutter downpipe or via a T-junction to a new or existing system of 90mm, 100mm or 150mm […]

Leaf Strainers and Covers

May 25, 2018
National Poly’s leaf strainers dramatically improve your water quality by preventing leaves and debris from entering your tank. Strainers are available in 300mm or 420mm diameters and are designed with a generous depth to reduce the risk of overflow. All leaf strainers that we provide you with are made using food contact approved (AS/NZS 4020:2005) […]

Water Tank Brass Fittings

May 25, 2018
National Poly’s tank fittings are a premium brass fittings with several features not widely available on other common fittings. O-ring and rubber washer – provides a perfect seal for your tank. Hex profile on generous outlet extension – allows most standard spanners to be used. Integrated left-hand clamping thread – allows for a firm and […]

Water Tank Pumps and Covers

May 25, 2018
  National Poly can provide you with water pumps and pressure systems that are suitable for the small weekender up to large acreage properties. We can provide you with the following leading brands. PolySlab Pump Covers Designed in consultation with leading Australian and international pump manufacturers, the Polyslab pump cover has been created with purpose […]

Chlorine Dosing Tank – Bundaberg City Council

May 25, 2018
Bundaberg City Council required an industrial-grade chemical tank for dosing water with chlorine. Chlorinating water is a common method of water disinfection and has been safely used for centuries. Poly Industries manufactured a small 5,000 litre (1,100 gallon) squat tank to meet specific gravities of SG1.5 and SG2, which are suitable for storing many liquids […]

90,800L Water Storage with Poly Water Tanks (Bundaberg Recreational Precinct)

May 25, 2018
Bundaberg City Council required multiple rainwater tanks with a total capacity of 90,800 litres to service its Bundaberg Recreation Precinct (show grounds). They decided purchasing multiple poly tanks was a better option than one very large tank. The cost-benefits of installing multiple smaller tanks, redundancy factor should one tank break, and space considerations are some […]

100,000L Storage in Poly Water Tanks (South-East Qld)

May 25, 2018
National Poly Industries regularly receives customers needing very large water storage solutions. One private property owner in South-East Queensland came to us requiring a minimum water storage requirement of 20,000 gallons (approximately 91,000 litres) and wanted to know our best value per litre solution. Many think buying one very large tank will be more cost-effective […]

50,000L Water Storage using Multiple Poly Water Tanks in Small Space (Toogoom, Qld)

May 25, 2018
There are some who believe it isn’t possible to have their property be entirely water self-sufficient. We have customers however, who have purchased water tanks through us for such purposes. In the Fraser Coast region, many homes are connected to a reticulated (mains) water supply. One home owner located in Toogoom, Queensland however did not […]

10,000 Gal Poly Tank Water Storage for Westlink Petroleum

May 25, 2018
Westlink Petroleum is an Australian fuel transport company that services South-East Queensland, Central Queensland and Northern New South Wales. They use a large amount of water when washing their transport trucks and desired to become self-sufficient in their water use. It was estimated a water storage capacity of 10,000 gallons (45,400 litres) was required at […]

Design Your Own Product

May 25, 2018
National Poly Industries work with external and in house designers and have state of the art rotomoulding equipment with a wide range of capabilities. If you have a poly product that you need then consult with us to help design and bring it to life. Project Rotomoulding Products from large to small can be made […]

150,000L Poly Tank Water Storage for Puma Energy

May 24, 2018
Pump Energy required water storage capacity of 150,000 litres (32,800 gallons) at their petrol station in Curra, Queensland. We regularly cater to large commercial storage volumes using multiple tanks which make for a cost-effective solution. In this case we supplied Puma Energy with four 37,200L (8,200 gallon) poly tanks. There are many benefits to installing […]

50,000L Water Storage in Small Space using Poly Tanks (Nemo Car & Dog Wash)

May 24, 2018
Nemo Car & Dog Wash in Bundaberg offer automatic car washes, self serve car washing for the do-it-yourself people and dog washing using the latest technology and highest quality products. Since much water is consumed during washing, rather than depend upon the mains water supply they decided to install tanks. Rainwater is also much better […]

Customer Case Studies

May 24, 2018
National Poly Industries is a privately owned Australian company who has been manufacturing tanks for over 20 years. We are well-reviewed by customers as we constantly uphold the highest standards and act with integrity in all dealings. Our desire is to make the process as painless as possible from order through to delivery, ensuring your […]

National Poly Benefits

May 24, 2018
Working with National Poly Industries provides you the benefit of dealing direct with a manufacturer who is both established and professional. Our expertise, in-depth experience and success comes from over 100 years of combined knowledge and state of the art manufacturing facility. All products are designed to the highest standards and to meet your requirements whether for household, […]

Polycraft Boats

May 24, 2018
Since National Poly Industries launched Polycraft, which manufactured its first boat in 2001, it has rapidly grown to become Australia’s leading brand of polyethylene recreational trailer boats. Poly Boat Designs Polycraft boats are available across the full mid-size range boating spectrum with a comprehensive range of layouts. Find out more Polycraft Benefits There are many […]

Feed and Water Troughs (QLD only)

May 24, 2018
Troughs are suited to feeding horses, cattle and sheep, but there are also many other uses that they can serve. Being made from UV-resistant poly means they will not crack in the sun. This also makes them ideal to be used in aquaculture, as part of a garden feature, pond or wading pool for children. […]

Why Poly Water Tanks?

May 23, 2018
The most popular type of water tank on the Australian market today are poly water tanks made from durable, UV-protected, food-grade polyethylene (a very lightweight, strong and safe plastic material). Rainwater tanks are fabricated from a range of materials. Some common tank materials include plastics, galvanised steel, concrete, stainless steel, fiberglass or a combination. Some of these […]

Why National Poly?

May 23, 2018
If you’re in the market for a water tank for your property, then consider adding National Poly Industries to your candidate list.  When you invest in a product to do an important job, you want to know your investment is a good one. However, buying a rainwater tank can be hard given the wide range of […]

Testimonials

May 23, 2018
“… so easy from purchase to delivery.” Today I received my water tank from National Poly Industries and would just like to say a big THANKS to yourself, Tony the salesman and all your staff for making it so easy from purchase to delivery. Even though I thanked the delivery driver JOHN I just wanted […]

AS/NZS 4766:2006 & ISO 9001:2008 Certification

May 23, 2018
National Poly Industries is one of only a few tank manufacturers that are certified to both the Australian Tank Standard AS/NZS 4766:2006 and ISO 9001:2008. This provides you with an additional guarantee that you are dealing with a manufacturer with an absolute commitment to quality. Your Tank Quality Assurance As an ISO 9001 certified manufacturer, […]

About National Poly Industries

May 23, 2018
National Poly Industries is a privately owned Australian company manufacturing tanks for over 20 years. We are a well established company and known as a pioneering poly tank manufacturer dedicated to being the absolute leader in the polyethylene rainwater tank market and associated product groups. In Queensland our manufacturing plant is located in Bundaberg, an […]

Warranty Conditions

May 23, 2018
After industrial tank warranty? View Industrial Tank Warranty. About This Warranty NATIONAL POLY INDUSTRIES PTY LTD ACN 107 251 267 trading as NATIONAL POLY INDUSTRIES (“National Poly Industries”) warrants that, subject to the terms of this warranty, it will either, at its sole discretion, replace or repair any water tank affected by a defect or […]

Privacy Policy

May 23, 2018
How we collect personal information We collect personal information in a number of ways, including: directly from you, such as when you request a quote or order products and services from us, or when you provide information by phone from publicly available sources of information when legally required to do so. How we use your […]

Our Specials

May 23, 2018
Special 1: 5000G Tank and Pump Sale (QLD) Free delivery to most areas! Request a quote today for a guaranteed great deal on a 5,000 gallon tank. Our 5,000 gallon round “Super Squat” tank is most suited to large blocks in town or rural properties. Click here to read more, or contact one of our […]

Molasses Storage Tanks

May 23, 2018
Molasses tanks look similar to water tanks, but being industrial-grade they weigh more and have thicker walls. We can supply molasses storage tanks in standardised sizes from 1,000L up to 28,100L that can be custom fitted. All storage units are supplied with a special screw top lid and breather. The brass outlet and gate valve […]

Disclaimer

May 23, 2018
The information published on this website is for general information purposes only. While steps are taken by National Poly Industries to ensure that the information on its website is accurate and up-to-date, we makes no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the […]

Cartage Tanks (Transporter Tanks)

May 23, 2018
Cartage tanks, commonly known as transporter tanks, are suitable for transporting water and most chemicals. Tank Sizes Available We can provide you with a range of different cartage tank sizes: 2,000 litres 5,000 litres 7,000 litres 11,000 litres 13,000 litres Features and Benefits Seamless one piece construction for greater strength Made from food-grade polyethylene Impact […]

For Mining

April 17, 2018
National Poly’s business network has given us a thorough understanding of the mining industry. The largest mining companies across Australia have experienced the quality production of our manufacturing facility and professional workmanship. We can help you with dosing tanks, large industrial tanks and flanges along with other fittings required in special mining operations. Our service […]

Industrial

April 17, 2018
National Poly have specialised in products for industrial applications for over 20 years. We have the experience and in-depth knowledge to evaluate your needs and deliver a solution. Industrial Tanks National Poly manufacture and supply a wide range of custom fitted industrial tanks. Find out more Chemical Storage Tanks Storage tanks can be manufactured according […]

For Builders

April 17, 2018
When it comes to choosing a rainwater tank for properties, you want one that will fit your project, is built strong, complements its surrounding and won’t let you down. You can rely on National Poly Industries to make you look good. Australians in the country have counted on National Poly Industries for years for their […]

Rural Applications

April 17, 2018
National Poly Industries is committed to providing strong, quality poly products designed to meet the needs of rural Australia. You can’t make it rain, but you can store it when it does! No other brand is more trusted than National Poly for their reliability. Browse our range, or contact us today to get expert advice […]

Urban Applications

April 17, 2018
Since 1997, National Poly Industries have been manufacturing rainwater tanks that are designed and built to last in tough Australian conditions. National Poly Industries is the country’s premier brand of polymer rainwater tanks and is committed to providing long-lasting water tanks to meet the needs of small and large households and residential areas. Our range of […]
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Calculating Your Farm Water Usage Requirements

March 21, 2018
Careful water planning is essential before investing in your farm and costly constructions. This planning means performing a detailed water audit for your farm, calculating your farm water requirements and then working out appropriate water sources that you can tap into. This article is intended to help farmers calculate their water usage needs. Areas of Farm Water Usage While […]
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Identifying Your Farm Water Sources and Storage Options

March 21, 2018
Having access to an adequate amount of water throughout the whole year is an essential requirement for successful farming. It doesn’t matter if you grow crops or rear animals to provide food, wool or other products, good quality water is essential for the welfare of your farm and business profitability. This article will focus on […]
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Should You Buy a Standalone Water Pump or Rain-to-Mains System?

January 15, 2018
Deciding what water tank to buy can be a hard decision, especially for those who like to do some due diligence and research first. Add into the picture you will need the right water pump to deliver the necessary water pressure. Matters then become even more complicated when one considers a fuller solution such as […]