the plastic washer on my basin has split but on the tap connector there is no service valve on the pipe so i went to the hot water tank found the right gate valve for the hot water turned it off but it did not shut off the hot water supply so i guess the gate tap is not working what can i do i am guessing i need to turn off at the mains coming in and drain the tank down ? do i need to turn the central heating off if i do this and the heating for the hot water tank ?
cheers heps