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Knowledge Base Articles

Configuring Li-Lo Underground Tanks as a Stormwater Detention System

Many councils and local authorities require new homes to install detention tanks to capture and temporary hold stormwater. Once captured, this water is slowly released into the stormwater drainage network which helps to protect against flash flooding in local areas. National Poly Industries sell Li-Lo underground water ...

Installing Li-Lo Flat Underground Water Tanks

Underground water tanks are a great way to harvest rainwater without consuming your above ground property space. National Poly Industries’ Li-Lo underground poly tanks offer an innovative flat design only requiring shallow excavation. They are manufactured in our Australian facilities according to a patented and lead ...

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Information Glossary

Our Information Glossary contains an index of information about rainwater tanks and found within our knowledge base articles. If you are don't want to mine through articles, then we recommend checking this area out first. 


About National Poly Industries

NPI Tank Range by Jason Last

Behind the scenes at Polycraft and National Poly Industries.