Underground Water Tank

Australian made underground water tanks are an ideal way to maximise your garden area. Tanks can be interconnected to increase your holding capacity. 

When space and accessibility are an issue, an underground tank is the answer, especially in an urban environment.

An increasingly popular option for architects and builders is an underground water tank. This allows for homeowners to maximise their space giving them more green space/or parking, when placed under paved traffic areas, driveways, garden beds or lawns, this solutions is not only aesthetically pleasing but an eco-friendly way to capture and harvest rainwater. With the smallest environmental footprint in the industry, Polymaster underground rainwater tanks give you the maximum capacity for the minimum square metreage.

• Fully tested polyethylene tank designed to withstand ground and water pressure at depth
• Engineered by geotechnical experts including finite element analysis (FEA)
• Certified to AS/NZS 4766 Rainwater tank standard
• Certified to AS/NZS 1546
• Sealed locking tamper-proof lid