We have just replaced our old combi-boiler with a new condensing model, and the plumber noted that we don't have great water pressure. For example, the electric shower in our 2nd bathroom provides only a scalding dribble if another tap is opened, or the washing machine is filling.
The plumber told me that a pump cannot be used with the combi-boiler, and wondered whether the mains stopcock tap (which I had discovered under some floorboards in the hall when relaying them) was fully open correctly. Otherwise he said that the only way to improve the pressure would be to fit a larger rising mains pipe from the road, and that this was a big job.
I have checked the mains stopcock - and it was fully open. HOWEVER, at the tap, the mains supply is reduced from a 22mm to a 15mm pipe. Would this cause a reduction in pressure for the whole house?
Advice really appreciated!!
SH
The plumber told me that a pump cannot be used with the combi-boiler, and wondered whether the mains stopcock tap (which I had discovered under some floorboards in the hall when relaying them) was fully open correctly. Otherwise he said that the only way to improve the pressure would be to fit a larger rising mains pipe from the road, and that this was a big job.
I have checked the mains stopcock - and it was fully open. HOWEVER, at the tap, the mains supply is reduced from a 22mm to a 15mm pipe. Would this cause a reduction in pressure for the whole house?
Advice really appreciated!!
SH
