The new WAVE shape suction is 5.1”(13cm) cover, required 2” hole size, 268GPM(1014 liters per minutes). It’s design to meet the the Virginia Graeme Baker Pool and Spa Safety Act of 2008, prevent entrapment risk.
The suction is connected to a safety-check valve to effect preventing entrapment efficiently. Once bather’s hair, body, limb, bathing suits etc is stuck to the suction cover, the safety-check valve will be work automatically, deliver air to the working pump. Let air into pump to ease the vacuum to release any entrapment or blockage on the suction. A private or public spa is necessary to have a VGB suction, to enhance the safety, to reduce child drowning, to reduce the number of suction entrapment incidents, injuries and deaths; and to educate the public on the importance of constant supervision of children in and around water.