I am trying to solve a problem of a leaking HOT tap in the bath. I assume it is is only a washer that needs replacing, which I can do, if I can find out how to turn off the water supply.
I can see two gate valves; one in the hot press coming from the emersion heater and one in the attic underneath/beside the cistern.
Should I turn one or either or both of these off, in order to stop the water? Or do I need to fully drain the cistern?
(Presume after turning gate valves off, I have to let the tap run until all of the water is out of the pipes? How long should the water run for)
House is typical four-bed semi detached in estate built in 1998.
Thank you