Water (shower valve) problems

[steveo]

Since the main in Lordship Lane has been fixed (it's been leaking for years), the water pressure has increased massively and my shower runs cold. According to the plumber, the water pressure has zapped the valve. We need a new valve and regulators put on water pipes that are buried behind tiles and plaster.

It's going to cost a fortune and take forever.

Anyone else had problems?

[dennis]

Does any hot water flow from the shower head at all if turned to maximum temperature ?

If so you may just need to install a pressure reducing valve (PRV) some where in the cold flow.

Either at the last accessible point before the shower to reduce cold water pressure to the shower

only or or at a point after the stop tap to reduce pressure to the whole system.

[Penguin68]

Writing as someone on the hillier parts of ED - having too high a pressure would be a boon, particularly in the summer when flow can taper off to a trickle. But most showers (I thought) run off the cold water tanks, not direct from the mains (hence problems with negative head pressure when showers are installed in attic extensions). I assume that you are in a ground floor flat and taking all your water direct off the mains and not via cold water tanks, as would be more normal in a house, particularly for showers. If your cold water is mains powered and your hot water comes from a static cylinder (i.e. without a booster pump) then I can see that you would have a problem once the mains pressure was increased. But I would get more than one quote about a remedy.