Product review (3 stars): I am not sure what to think about the circulation pump
installation was not straight forward for me. I have to replaced valves and do some soldering. I am not sure what to think about the pump, now my cold water is warm and my hot water is not as hot as before. It seems that when the pump is not working it lets water flow from the hot side to the cold side and from the cold side to the hot side. I am trying to upload a picture of my installation, maybe I am doing something wrong. I am also not sure about the savings on the long term as the pump is expensive and the installation can e challenging for a home owner.