Turning off hot water to bathroom tap

stefanovich

Need to replace hot water tap head gear in bathroom. I've researched how and found videos on youtube which explain it quite well. Seems simple enough.

The only question I have is about cutting the water off to the tap. Do I need to drain the hot water tank or would there be a way to get turn off the output from the tank?

Wearb

There should be a valve near the cylinder for stopping it. Possible on pipe near bottom of cylinder, but not on the cylinder coil.

Locate what you think is the correct valve, turn on your tap and see if it stops when you turn off the valve.

Count the turns on the valve so you can put it back where it was- in case you turn the wrong valve.

stefanovich

Wearb wrote: »

There should be a valve near the cylinder for stopping it. Possible on pipe near bottom of cylinder, but not on the cylinder coil.

Locate what you think is the correct valve, turn on your tap and see if it stops when you turn off the valve.

Count the turns on the valve so you can put it back where it was- in case you turn the wrong valve.

There are 3 valves near the tank. One on pipe connected to the base of the tank and going up to the attic, there's also what I assume is an overflow spout at the base. This pipe is cold so I didn't try it.

There is another pipe connected to the base at the other side, it's hot, it appears to be the feed in from the boiler, there is also a junction where it feeds the upstairs radiators I presume.

There is also one big pipe coming out the top of the tank which is hot. No valve there. This is the one I assume is feeding the taps...

In this sort of setup should I be draining the entire tank? I might take some pictures.

Wearb

Try turning off the one you first mentioned in your last post and see if that does it.

stefanovich

Wearb wrote: »

Try turning off the one you first mentioned in your last post and see if that does it.

Aha, you genius! I assume this pipe although cold is applying pressure to the tank and then forcing hot water out the top to feed the pipes?

Anyways it worked. Thanks dude.

I noticed it wasn't all the way open so I counted the turns as you mentioned previously. Presumably this is to control the pressure on the tank? Would it normally be fully open? Will that give me a more vigourous shower in the morning?

Wearb

I would leave it fully open....unless somebody else here can think of a good reason not to.

stefanovich

Well thanks again! Changed the two taps in the bathroom without flooding the place!