Thank you for your continued patience. We will continue the search for a Professional for you.
I tried to reply a few days ago but do not think it sent. I ran the rainshower head hot for 30 secs which gave 1.75 litres of water. It also gave 1.75 litres of cold water running for 30 secs.
The hand held shower head gave 1.5 litres cold and 1.25 litres hot.
Thank you very much, that is what we think may be the problem. Someone has suggested buying a push fit connection valve to replace the isolation valve so that more water can pass through the valve. We will have to cut a hole in the kitchen ceiling in order to get to the current isolation valve so before we hack into the ceiling, do you think this may solve the problem?