I have a thermal store system where the mains pressured water is forced into the coil of the hot tank and is heated by the surrounding water. Then it is blended and to the taps and shower.The boiler is working ok and the tank gets hot to touch. I recently changed the blending valve but still the same problem. I disconnected the blending valve so the hot and cold inlets and the output pipe to the taps were completely disconnected and the turned the mains water on. I get hot water out of the tank but water came back up the outlet pipe to the taps.How can this be? The only way the cold and hot water is mixed beyond the blender is at the shower and bathe/ shower mixer taps.
I have had the pressure checked and the water board says its ok and a plumber said that the flow from the bath is 5 litres /min where it should be 18litres/min.
The system has a prv and non return check valve which the plumber has ok'd
Any suggestions?
I have had the pressure checked and the water board says its ok and a plumber said that the flow from the bath is 5 litres /min where it should be 18litres/min.
The system has a prv and non return check valve which the plumber has ok'd
Any suggestions?
