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Diaphragm pressure tanks store water under pressure in a pump system. They reduce how often the pump starts, keep pressure steadier at the tap and help the pump last longer. This collection includes tanks from Aquaflo and Wilo.
How to choose a diaphragm tank
- Tank size: a larger tank means fewer pump starts. Match the size to your pump's flow and the number of outlets.
- Pre-charge pressure: with the tank empty, set the air pre-charge slightly below the pump's cut-in pressure.
- Diaphragm design: the diaphragm keeps air and water apart, so the tank does not become waterlogged like a plain tank.
Use with
Pair a tank with a booster pump, jet pump or shallow well pump, and a pressure switch to control it.
All products from KHM Megatools are genuine and covered by the manufacturer's warranty where applicable.
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