Aidan wrote:
JT wrote:
There's a strainer/ filter on the inlet to the multi-function valve
(strainer, reducing valve & check valve); I'm not certain that the
Megaflo's got a PRV but you'll see at a glance. The strainer may have
got blocked with crud left in the pipes. Check the pressure reducing
valve (if there is one) is set at the correct pressure.

But that wouldn't affect the cold mains pressure all over the house??

David