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I have a zone with two supply and one return. All 1” copper. It used to have a single system pump on the return. Anyone see any harm in putting the pump on the supply side as I typically do or safer to pull from the single return? One supply goes to the front and one to the back of the house and the return goes down the middle of the house but all disappear into a finished room so I can’t follow the pipes. Thanks.
Technical Support Manager, HTP Comfort Solutions.