Hi
I have installed a single impeller shower pump to a shower bar mixer. Our hot water pressure is very low so I installed this to up the pressure.
The problem is that the cold water comes straight from the main as opposed to a header tank, so the pressure coming into the bathroom is very high. When I turn the shower mixer bar to open the cold water over powers the hot water stopping any from flowing resulting in the pump not turning on.
I can over ride this by opening the hot water tap on the sink then quickly closing it, this creates a shock wave triggering the pump to start pumping. Obviously not ideal.
Any ideas on how to over come this problem? I have fitted a pressure reducing valve to the cold water and set it to the lowest setting but the problem still remains. I'm thinking the next thing to do is change the mixer bar for a separately operated hot and cold shower mixer rather then the thermostatic bar mixer that I have, so the cold won't have the chance to over power the hot???
Any thoughts welcome.
Andy
I have installed a single impeller shower pump to a shower bar mixer. Our hot water pressure is very low so I installed this to up the pressure.
The problem is that the cold water comes straight from the main as opposed to a header tank, so the pressure coming into the bathroom is very high. When I turn the shower mixer bar to open the cold water over powers the hot water stopping any from flowing resulting in the pump not turning on.
I can over ride this by opening the hot water tap on the sink then quickly closing it, this creates a shock wave triggering the pump to start pumping. Obviously not ideal.
Any ideas on how to over come this problem? I have fitted a pressure reducing valve to the cold water and set it to the lowest setting but the problem still remains. I'm thinking the next thing to do is change the mixer bar for a separately operated hot and cold shower mixer rather then the thermostatic bar mixer that I have, so the cold won't have the chance to over power the hot???
Any thoughts welcome.
Andy