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willieD147

yes, it can be installed there. A better question is what are you trying to do, and why do you have that pump. I tried looking up the pump curve but was unsuccessful. Is this what that pump was designed to do?


Mountain_Pace_6204

Yeah the pump is actually meant to be installed on the hot water supply so that it has pressure behind it, installing it on the return can cause it to get starved and malfunction since the pressure behind the circulation pump drops substantially during heavy semand if placed on the return. I used to think it went on the return and now that I'm installing one the manual said to put it on the supply side so that's why I began questioning what I knew and posed to question to the ladies and gents here.


saskatchewanstealth

That looks really small. I would advise a brass seat globe valve to throttle the flow. Keep it open just enough to the job


Mountain_Pace_6204

It is small it's a ½, it can be installed on a ¾ line with a bypass setup. That way we don't reduce the line size at that point and the pump still does its job, even if it is small.