Advise please for new en-suite.
Mains pressure cold water connection feeds toilet, basin and shower in new en-suite, then continues downstairs to kitchen, into back of fridge/freezer (with ice maker) then on to kitchen mixer tap and dishwasher.
Hot water for this en-suite comes from hot water tank about 20 feet away and 5 feet below new bathroom. It only feeds the basin, shower and kitchen mixer tap.
The shower is the problem. It is an Adams & Co 1922 exposed shower valve with 5 inch rain head above.
It was first recommended we put a restrictor into the cold water feed of the valve. The green, strongest restrictor was used. Shower still cold.
Salamander ESP CPV 80 was installed, pumping only the hot water. It works well, however the shower runs hot then cold, warm then cold again. It is better, but not right.
It is suggested that the shower valve is not coping with the different pressures and not mixing correctly.
Another plumber suggested that the pipework be exposed (tiles would need removing) and new pipe from c/w tank put in to shower. We would really like to avoid this.
We have had so much 'advice' from different plumbers, we don't even think of the money any more, we just want an en-suite shower that works!
Question: Does anyone know of a shower valve that will cope with different pressure cold & hot water feeds?