By creating a physical barrier at the end of your tank outlet pipes, the Flat Valve Plain keeps mosquitoes out of your tank to protect the quality of your rainwater.
When overflow water needs to exit your tank, the hinged Flap Valve Plain automatically opens to let it out. This ensures unimpeded flow even during high rainfall events. Importantly, the flap cannot over-rotate or be left open as it closes automatically afterwards.
Secure your System with Rain Harvesting Flap Valves. Securing a Flap Valve to end of your tank and downpipe outlets ensure pests and insect can’t enter your rain harvesting system and harm your rainwater.
Your Flap Valve is self-closing and largely self-cleaning, so it requires little to no maintenance. If maintenance is required, simply hose or brush off the flap or mosquito-proof stainless steel vented screen.
Vented and non-vented flap valves provide a self-cleaning insect-proof and vermin-proof barrier at the end of your pipework. However, vented flap valves also allow fresh air to circulate freely through your pipework and tank, a benefit not available with non-vented flap valves.
“Flap valve” and “frog flap” are interchangeable names for the same product. Both are designed to keep frogs and smaller pests such as mosquitoes out of your pipework and tank.
We recommend gluing flap valves to your pipes. Although a flap valve is an end of line component and is not subjected to pressure, it is important that all mosquito-proof barriers are secure.