Cutoff for ensuite toilet

Orion

I need to clean out the inlet valve on my ensuite toilet as the cistern fills very slowly - main toilet fills 4 times in same time. I know how to do this but can't for the life of me figure out how to turn off the water.

In the attic there are 4 pipes from the tank - two 1/4" ones have valves - shut them both off but taps still working.
In the hotpress two pipes from attic also - shut off one and still have water - tbh that pipe is a little warm anyway so don't think it's the right one. Other has a valve that won't budge - and it looks a little different so not sure if it's supposed to. It's a wider pipe but does have a 1/4" one coming out of it in to the wall which may be the one for the toilets.

One other valve is down behind the tank in the hotpress - shut that one off too - no joy.

So is it the one I can't move? If it's seized what are my options?

Orion

I think I've worked out the pipes - tell me if I'm wrong.

The one on the right of the hotpress from the attic goes into the large tank. So that's feeding the heating.
There are two on the left - one comes off the large tank and goes up to the attic and hangs open over the tank there - overflow?
The other is coming from the attic and has the valve that wobbles but won't move. This I'm pretty now is the one I need to turn. It's a half inch pipe with a quarter one coming off it into the wall of the hot press. Ice cold and doesn't go near the hotpress tanks.

The one at the bottom of the hotpress I did turn but I'm not sure if I turned it back exactly to where it was - this one seems to feed the small drum in the hotpress - is this a problem if it's not exact? There's no gauge on the drum that I can see to check the pressure - I assume that's what this one is for?

Still can't figure out what the other pipe is in the attic - could be the downstairs loo maybe.

Sleeper12

Might be a a bit obvious but thought I'd ask Is there a penny valve close to the cistern? This would be the easiest option if there is.

The seized value is most likely the one that you need. If you can't free it then the tank in the attic will need to be drained to let you work on the cistern and replace the seized valve. Personally I'd replace it with a lever valve.
There's usually a restrictor in the cistern and this may need to be changed or removed.
It might be a good idea to get a plumber in if you are not comfortable doing it. Also I think you have closed the heating /coil valve. When opening this you usually open it a quarter turn or so

Orion

There is no penny valve. Pipe goes directly into the wall.

I do have a plumber coming soon to put in a power shower - might just get him to do this too. I'd like to fix the inlet myself but don't want to break anything either.

I think I put that other valve back close to where it was. Heating and hot water are ok anyway. Is there anything I should watch out for?

monseiur

You could temporarily tie up the ballcock in the attic tank, or turn off the gate valve at the water meter, turn on a cold tap to drain the system and while you're at it replace the seized valve with a lever ball valve. Of course the downside to this is that you may get air locks in the system.

M.