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  1. J

    solar return check valve or gas heater auto flow valve causing pulsing/water hammer

    Hi, first time poster on this forum, so apologies if it's in the wrong place. The website has helped me a lot since moving into a home with a pool last December. Thank you for all of the information you provide. I have just installed a variable speed filter pump (Jandy VS Plus HP, VSPHP270AUT)...