So I put a pressure reducing valve to the cold supply then I can fit a pump to the cold and hot leading in to the mixer shower?
How do I know that the pressure of the mains supplied cold is reduced sufficiently?
I have mains fed cold supply going in to my bathroom and gravity fed hot.
The hot supply is vey low preassure resulting in an inadequate shower.
How can I boost the pressure to the shower? Can I fit a pump to the hot supply only?