"Doctor Drivel" wrote in message
...

If having a combi or mains pressure water system then always have a 22m
full-bore stoptap and a "dedicated" 22m pipe to the combi or cylinder.
This ensures the cokbi ger priority if say another cold water tap is
turned on.

Good idea. I'll definitely try for that. 22mm to combi and 15mm to other
stuff. Steve.