Evening all.
Back during lockdown, elderly mother in law had a new bathroom fitted. One hole basin, mixer tap. Some time later she tells us she is only getting a dribble of hot at best, and asks me for help. Thinking maybe the tap had gone bad, or wasn’t meant for low pressure systems in the first place, we loaded a few tools and headed into Wales from Yorkshire to see if we could sort it.
Sure enough, plenty of cold, tiny dribble of hot. Kitchen tap better, but not super. As a diagnostic, I undo the flexi hose leading to the hot side of the mixer and run it into a bucket, plenty of flow and acceptable pressure. Thinking I had proved the tap at fault, I run to Screwfix and fetch a similar tap listed as suitable for low pressure. Problem solved, new tap on, MIL happy.
Now a couple of months down the line, it’s back. I don’t know how to fix it. It’s a bungalow with a tank with immersion heater in a bedroom, with header tank above in loft. Mains pressure varies, on a Welsh hillside village in Flintshire. Swapping the sink to have separate taps is one option, but this shouldn’t be happening in the first place.
Any pointers?
Cheers.