I am planning to install a shower into a new extension. The supplies will be mains CW, gravity HW. I have read other posts about using single pumps and pressure equalising valves to balance the supplies. The HW feed to the pump will be as a branch from the supply to the kitchen. It is currently 15mm copper pipe, and the new feed will be plastic. After the branch I will fit a check valve to prevent siphonage from the kitchen sink. Is 15mm sufficient to feed to the pump,
and from the pump should I then run 15mm or 22mm to the mixer,
and then 22mm from mixer to shower head. (Yet to buy pump, valves, mixer and shower head.)
Any advice greatly appreciated
and from the pump should I then run 15mm or 22mm to the mixer,
and then 22mm from mixer to shower head. (Yet to buy pump, valves, mixer and shower head.)
Any advice greatly appreciated