Solar Pool Heater Check Valve
It s not always necessary to change the bypass valve settings every time the heater is used or each time the pool is finished being heated.
Solar pool heater check valve. To capture the sun s heat efficiently the piping in the solar panels must be full of water continuously. Two valves control the flow to and from the solar collectors and one allows for bypassing the collectors if there. It features large panels that are so efficient at collecting the sun s energy that it can increase your pool s temperature by 10 to 15 degrees in less than 24 hours. Solar return check valve.
There is a small hole or a built in reverse check valve in the solar bypass valve to allow water to drain down the supply line through the bypass tee and to the pool returns. On average the heater on a residential pool is used occasionally but doesn t run daily. Get it as soon as wed sep 30. Without a check valve to stop backward flow the water in the piping would be suck back down when the pump is shut off.
A check valve placed on the pipe that leads to the solar panels will prevent drain down of the solar system when the pump shuts off. Pentair makes a solar 3 way valve for this purpose. A pool heater is almost always the most expensive piece of equipment on the pool pad and if the addition of a simple valve can even potentially protect this heater from damage or early failure then this is a slam dunk for me to say you should add the extra layer of protection. The main solar pool heating page aleady showed a diagram of a manual system using a single control valve and a check valve.
The following two diagrams illustrate how a manual system can be done using three identical manual valves. Solar pool heater panels that are roof mounted may use check valves on the supply and return pipes. A pool heater can be costly to operate if used to continuously heat the pool. The first check valve which allows water to flow only one direction prevents water from back washing the filter into your pool.
Every well designed solar pool heating system should include four valves for proper directional control diversion and isolation. More buying choices 39 99 10 used new offers zodiac 7056 cover with flapper assembly replacement kit for zodiac jandy spring check valve. 4 6 out of 5 stars 146. Pentair 263042 check valve cpvc for pool pumps 2 port straight.
A small hole drilled in a standard 3 way valve also does the trick.