toilet cistern

heapie · Posted: Thu Jan 12, 2006 4:02 pm Post Subject: toilet cistern

I have one of these cisterns that is close to the bowl and does not have an overflow. Instead the overflow goes directly into the bowl which has now started to constantly run slowly into the bowl nonstop. How can I stop this from occuring please? Thank you.

Bahco · Posted: Thu Jan 12, 2006 4:30 pm Post Subject:

Try adjusting the float valve so that it cuts the flow off 1 inch below the overflow level.

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heapie · Posted: Fri Jan 13, 2006 2:32 pm Post Subject:

But how can you adjust the valve when the arm is made from plastic not from copper. The whole fitting is just a plastic arm with a round float at the bottom?

Bahco · Posted: Fri Jan 13, 2006 2:42 pm Post Subject:

Depending on what type of float valve you have , you can either unscrew the screw out a bit more or if it is a small float on a stick you can screw it up or down to change the cut off level.

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heapie · Posted: Fri Jan 13, 2006 2:57 pm Post Subject:

Thank you for your help....I have just realised that the arm down to the float is notched out and can be twisted up or down(in this case down to close off the valve sooner). Sorry for being a pest but its nice to know that someone out there is prepared to help....thank you.

Bahco · Posted: Fri Jan 13, 2006 3:57 pm Post Subject:

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jobloggs · Posted: Fri Jan 13, 2006 5:19 pm Post Subject:

Problem could be wear on rubber washer/diaphram in valve depending on type. If extra leverage from moving float doesn't work next step is replacing rubber washer.

heapie · Posted: Fri Jan 13, 2006 5:52 pm Post Subject:

Yes I have moved the arm to its final notch but it is still leaking....can I buy a washer without having to replace the whole lot....This cistern is only two years old?

dal5band · Posted: Fri Jan 13, 2006 6:48 pm Post Subject:

It may not be float valve or a level of water problem. Is it actualy overflowing over the top of the pipe in the middle of the flush? - have a look when it is running. If it was overflowing it would be quite a deluge after a while.
It's more likely the flush valve. It may have something stuck in the valve or the rubber seal (large washer) is worn out. You can usually twist and get the whole flush out depending on the make (turn the water off first).

What does it look like?

The old syphons didn't have this problem.

jobloggs · Posted: Fri Jan 13, 2006 8:00 pm Post Subject:

See if you can identify your valve on

http://www.bes.ltd.uk/products/120.asp

If so you will know what washer diaphram you need.

You could try dismantling your valve (turn off water first !!!) in case it has debris in it although some have filters in them.

heapie · Posted: Fri Jan 13, 2006 8:06 pm Post Subject:

yes it looks like the torbeck side inlet and the water is actually trickling over the inlet on the top of the arm after the system has completed its flush....Any offers please?

bab · Posted: Fri Jan 13, 2006 8:44 pm Post Subject:

A torbeck is a very easy valve to rewasher but has its own uniqiue washer.It has a small pin attatched that has to be replaced correctly so take note as u dismantle it. isolate the water unscrew thw blue nut & remove arm & blue nut , pick out the large black washer noting the position of the pin replace then reasemble. the washer will be available at a plumbers merchants but not sure about a diy shed.

heapie · Posted: Sun Jan 15, 2006 3:52 pm Post Subject:

Thanks very much for your help, the washer has been replaced and everythings back to normal. If that cistern is a sign of progress...bring back the penny farthing???