Currently have a hot water recirc loop to master bath. Grundfos pump is attached to hot water return line (upside down) and tee'd between the water supply check valve and expansion tank at the HWH. That works ok. When I put a comfort valve between the hot & cold water under the kitchen sink it has no affect.
Kind of acts like a check valve is somewhere in the system, more than likely I don't understand the concept. Florida house, so cold water plumbing is either coming up thru the slab or hidden in the wall which prevents me from visually checking beyound the hwh connections
Anyone have some advice
Kind of acts like a check valve is somewhere in the system, more than likely I don't understand the concept. Florida house, so cold water plumbing is either coming up thru the slab or hidden in the wall which prevents me from visually checking beyound the hwh connections
Anyone have some advice