Currently have a bath mixer/telephone shower tap on an unbalanced supply (mains cold and gravity hot) which causes the familiar problem of overflow from the cold water storage tank due to back pressure from the mains cold supply.
I know its an illegal setup at present but can I put a pressure reducing valve on the mains cold supply and a non return valve to make it ok? Or do I have to just change the taps for singles?
I know its an illegal setup at present but can I put a pressure reducing valve on the mains cold supply and a non return valve to make it ok? Or do I have to just change the taps for singles?