I have recently changed a cloakroom toilet and cistern. But now want to change the sink.
I am ok with isolating the cold water but unsure about isolating the hot water to the sink.
The heating and water are supplied from a combi boiler.
Also make sure you turn down the hot water temp nob or isolate boiler as some can go to lockout if the hot tap is opened to suply hot water with the mains water turned off.
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