I cannot cut off the hot water supply and want to change the kitchen taps. The cold is no problem, but I cannot seem to stop the hot.
I have an indirect system, I have two more gate valves in the airing cupboard, one at the bottom of the hot water cylinder, one on a pipe running straight up to the loft (this valve is frozen, I think it is the cold water up to the water tank).
When I shut off the bottom valve, nothing noticable happens - do I have to shut this off and then drain the whole thing? Would the best approach be to turn off the cold main, then the bottom valve and let it run till empty? Do I have to stop the header tank (prop up the ballvalve or something)?
I'm tempted just to cut the hot water live and fit an isolation valve as it looks like the simplest option!
I have an indirect system, I have two more gate valves in the airing cupboard, one at the bottom of the hot water cylinder, one on a pipe running straight up to the loft (this valve is frozen, I think it is the cold water up to the water tank).
When I shut off the bottom valve, nothing noticable happens - do I have to shut this off and then drain the whole thing? Would the best approach be to turn off the cold main, then the bottom valve and let it run till empty? Do I have to stop the header tank (prop up the ballvalve or something)?
I'm tempted just to cut the hot water live and fit an isolation valve as it looks like the simplest option!