Toilet: Removing the Cistern Valve Blocker

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The discussion revolves around a toilet repair issue involving a hissing noise and a leaking cistern valve. The user replaced the old valve but encountered a mysterious component that seems to prevent the sealing washer from contacting the wall of the water closet, leading to both leaks and slow water filling. Participants express uncertainty about the component's purpose, suggesting it might be essential and advising against its removal without further investigation. There's a recommendation to consult with the store where the new valve was purchased for expert advice. One user speculates that the component could be part of a nylon compression fitting, indicating that a missing collar may be necessary for proper installation. The conversation highlights the importance of understanding plumbing components before making modifications, with some humor about the potential consequences of improper removal.
wukunlin
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So the toilet in my parents bedroom is all hissing and annoying so I decided to try fix it for them.

I bought a new cistern valve to replace the old one, when I removed the old one i noticed this thing circled in the attached pic.

I'm not sure what it is used for except it prevents the sealing washer from making contact with the wall of the water closet, so now the toilet starts to leak with the new valve installed :(
I think it is also blocking the flow of water because when the new cistern is installed, the water closet fills up very slowly (even when taking the leakage into account)


so, should I remove this thing? if so what is the best way to do it?
 

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Did you keep the old part you could try putting it back into see what happens. Generally people don't just add parts to machines that don't do something so I would say if it was in before it should probably stay in. I see people remove parts from stuff without understanding what they do all the time at my work and it rarely makes things better.
 
I've replaced the innards of one or two toilets, and nothing in that picture looks familiar to me. What part of the world are we talking about here?
 
Containment said:
Did you keep the old part you could try putting it back into see what happens. Generally people don't just add parts to machines that don't do something so I would say if it was in before it should probably stay in. I see people remove parts from stuff without understanding what they do all the time at my work and it rarely makes things better.
good point, but the old parts don't make contact with the thing I circled, so it is really difficult to tell ><

zoobyshoe said:
I've replaced the innards of one or two toilets, and nothing in that picture looks familiar to me. What part of the world are we talking about here?
New Zealand, in southern pacific ocean
 
wukunlin said:
New Zealand, in southern pacific ocean
That's suitably remote for me to suspect there's a different way of plumbing toilets there, or, that it's some very old system, or something.

Easiest thing to do is go back and ask at the store you bought it. Here the people who sell to do-it-yourselfers usually know a lot about how it works.
 
wukunlin said:
So the toilet in my parents bedroom is all hissing and annoying so I decided to try fix it for them.

I bought a new cistern valve to replace the old one, when I removed the old one i noticed this thing circled in the attached pic.

I'm not sure what it is used for except it prevents the sealing washer from making contact with the wall of the water closet, so now the toilet starts to leak with the new valve installed :(
I think it is also blocking the flow of water because when the new cistern is installed, the water closet fills up very slowly (even when taking the leakage into account)


so, should I remove this thing? if so what is the best way to do it?

It's hard to tell for sure by looking at your photo, that but looks like it might be part of a nylon compression fitting. It so, that would imply that you are missing at least one part - a collar that slips down over the fitting to secure the pipe connection. Is the piece below that threaded on the outside?

It's leaking water from this point?
 
Wow you guys know a lot of toilets! Use an axe and swing with full force should cut it or call a plumber before you destroy the toilet and turn it into a fountain.
 
Last edited:

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