by geoffclark » Thu Apr 21, 2016 7:17 pm
by lets have a look » Fri Apr 22, 2016 7:40 am
by geoffclark » Fri Apr 22, 2016 10:19 am
lets have a look wrote:try turning the pressure down at the main incoming stop cock
by lets have a look » Fri Apr 22, 2016 6:20 pm
by geoffclark » Sat Apr 23, 2016 3:19 pm
lets have a look wrote:ok valid point, I have been doing domestic plumbing for 40 years and have never fitted or seen a pressure reducing valve fitted in a house or flat,only in multiple occupancy where anyone can adjust the stop cock, so am at a loss to why you had one fitted instead of reducing the pressure at the stop cock.
A non return valve to a shower should be located at a point where it's accessible,airing cupboard,in a panel,under the bath,but again never fitted them.
I would change the inlet valve to the cistern,this is the most common place to get water hammer (in a ballvalve) or if there's a isolation valve on the pipe do a test by turning it off,I take it that the shower and wc are mains fed not tank fed ?