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90mm  Stormwater Backflow Prevention Device – Air Gap

90mm Stormwater Backflow Prevention Device – Air Gap

Regular price $25.89
Sale price $25.89 Regular price
90mm  Stormwater Backflow Prevention Device – Air Gap
Part Number: TAAG01 (90mm) | Size: 90mm

In some cases, there is a risk of the stormwater system being blocked downstream, causing stormwater to flow back into your valuable rainwater storage. This may cause contamination as the content of the water from the stormwater drain system is unknown.

The Stormwater Backflow Prevention Device (Air Gap) by Blue Mountain Co solves this problem by creating a simple yet effective air gap that prevents stormwater backflow from entering your rainwater bladder tank. Instead of contaminating your stored rainwater, any backflow safely discharges out of the air gap onto the ground.

This device also features a removable mesh mosquito screen to prevent mosquitoes, frogs, rats, and other pests from entering your rainwater tank system through the overflow. Paint it to suit your tank or home for a seamless appearance.

Specifications
Brand Blue Mountain Co
Model Stormwater Backflow Prevention Device (Air Gap)
Material Durable UV-stabilised plastic (paintable)
Compatibility Rainwater bladder tanks, above/below ground tanks
Size 90mm
Application Prevents stormwater backflow from contaminating rainwater tanks
Compatibility Rainwater bladder tanks, above/below ground tanks
What's in the Box: Air Gap unit
 How It Works – Air Gap
1

Stormwater system blocked downstream – A blockage occurs in the stormwater drain system.

2

Backflow attempts to enter – Stormwater tries to flow back into your rainwater tank.

3

Air gap activates – The device creates an air gap that prevents backflow from entering your tank.

4

Safe discharge to ground – Contaminated water flows out of the air gap and discharges safely onto the ground.

5

Pest protection – Mosquito screens block insects and vermin from entering your tank via the overflow.

 When Is This Required?
Stormwater system blocked downstream

Risk: Stormwater flows back into your rainwater tank. Solution: Air gap prevents contamination.

Unknown water quality in stormwater drain

Risk: Potential chemical or bacterial contamination. Solution: Diverts backflow safely to ground.

Mosquito breeding in overflow line

Risk: Pests entering tank system. Solution: Removable mosquito-proof screens.

Property in low-lying area

Risk: Higher risk of stormwater surge backflow. Solution: Air gap provides protection.

💡 Tip: Local plumbing regulations may require backflow prevention on all stormwater connections to rainwater tanks. Check with your local council or plumber.

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