How do I turn off hot water supply , so I can replace a kitchen tap?

Answer 1

In your airing cupboard where your hot water cylinder is situated you will see a 22mm copper pipe going into the tank at the bottom usually on the right hand side. on this pipe there will be a gate valve i.e. one with a round red handle, if not in the cupboard then look above in the loft, close this valve then run your kitchen hot tap till the water stopps then change the tap, all you will have is a little excess water in the pipe below the tap catch this in a bowl ,when complete leave tap open and then open the gate valve again this will avoid an air lock in system, when the water is running ok then you are finished.

Answer 2

If you have a cylinder you will have a 22mm pipe coming out of the top - this is the supply to the hot water taps. If there is a valve there (usually a red wheel) turn this off, then just open the kitchen tap to drain the water in the pipe. If no valve on this pipe turn off the feed to the cylinder then open the tap to drain as described previously.

If a combi turn the stop tap, probably under the sink, then turn your boiler off.

Jobs a good un.

Answer 3

There should be (at least standard plumbing code in the US requires it) shut off valves under the sink for the cold and hot water. If you don't have any valves like that, you need to shut down the water at the water heater.
It's a good idea to shut off the water heater before you shut down the water to it or from it. At least turn it way down if you can, because you don't want it trying to heat up the water when the tank might be partially empty.
If the water heater is below the kitchen tap, there shouldn't be much problem with water draining out while you work. If the heater is at the same level or above the tap, you have to shut off the hot water outlet at the heater, or look forward to the tank slowly trying to empty itself as you work.
Change the tap, and if you don't have shut off valves under the sink...this is a good time to add them...then turn the water back on, and run it out of every tap until the air is vented out. Close the taps, check for water leaks. Then turn the heater back on or up.

Answer 4

Replace Kitchen Tap

Answer 5

If you have a combi boiler just switch off the main stop tap and turn the other taps on to drain the water in the pipe.

If you've a tank then do the above until the hot water tank has fully drainted.

Answer 6

Assuming you are in UK, and have a standard setup with a hot cylinder, the hot tap is fed from the top of the cylinder (its coming off a "T" ) so, isolate the cold supply to the bottom of the cylinder. Alternativly, isolate the supply to your cold tank, even the main stopcock, then run your cold taps (but not the kitchen tap), this will lower the water in your cold tank, hence cut the feed to your hot tank, you may get a small quantity of hot from your hot tap after the cold has stopped running, but you wont loose your whole hot tank.

Answer 7

various options
if its a combi heating system then turn the water off at the stopcock (and turn the boiler off as well, open a tap lower than the one you wnat to replace (if you can) just to draw off ther pressure.

if its a traditional balance tank installation then turn off the feed to the balance tank then drain off the water as above

an alternative is to consider buying one of the freezing sprays to freeze the pipe which creates a temproary blockage so you can do the work. If you are a beginner at this task then I'd suggest considering putting in a stop valve immediately afeter the blockag so that you can take as long as you need to do the work. If you are expereinced and know what needs to be done right now then you dont need to put in a stopcock

Answer 8

you need to turn off the service valve under the sink. there will be one on the hot and cold water pipes. turn the hot one off and then you can remove the tap.

turning off the stop tap will not stop the hot water coming out yout hot water cylinder

Answer 9

Turn off the stop tap and it turns off both hot and cold.

Answer 10

turn off your water at the mains then drain your tank so there is no water in the taps