Just installed an auto ballast, but water back siphons, so anybody know where to get check valves to stop this? I need three.
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RE: need check valves for ballast
I used some brass check valves from Lowes for about $15. They are near the water pumps and filters. They have spring inside that will need to be cut. You can unscrew the nut, take the spring and cut it in half. This reduces the pressure needed to open the valve. Its worked great for me.
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