Check Valve: A check valve is a mechanical device that allows fluid to flow in one direction while preventing backflow in the opposite direction. It operates automatically, relying on pressure differences across the valve to open or close without the need for external actuation. Check valves are essential components in piping systems to protect equipment, maintain pressure, and prevent contamination or damage caused by reverse flow. There are several types of check valves, including swing, lift,
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Installed a new check valve (aka one-way valve). This is on the spa suction / intake side. Issue: Spa draining down when the equipment is off. Cause: Usually one or more failing check valves. These valves are designed to hold water level and only allow flow in one direction. This install is a spring-loaded check valve that works off water pressure. When water flows, it pushes the spring open. When flow stops, the spring snaps shut and prevents backflow. Simple fix. Big difference. One way valve,
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