could this be a flow rate issue rather than a pressure issue ?
what size are the feed pipes for the shower ? 22mm I think, whatever size fits the fitting, the pipes are the right size
how is it running just cold water? VERY POOR
are there any non-return valves fitted ? Don't think so
the...
HI, I have a Worcester Bosch combi boiler (Greenstar 30CDi) which seems to work very well, supplies loads of HW to the WHB and kitchen. Problem is we have a Grohtherm 2000 thermostatic shower and bath filler and the lack of pressure means its almost impossible to take a shower under it and it...