Leaking toilet float valve

[Sweeney125]

Hi all - can anyone offer repair advice for leaking toilet float valve? It appears that despite the float arm shutting off the water there's a slow but steady drip into the cistern from the inlet side of the fitting - where the orange arrow points. Is there a washer inside likely to require replacement or maybe ptfe tape required around the thread (or both)? Maybe the whole assembly ought to be replaced? I've only just moved in and never attempted a toilet repair :sweatdrop:

For the time being I'm shutting off the water at the inlet valve after each flush & refill or the cistern overfills into the overflow where guess what, I have another leak but I'll deal with that later...

Thank you in advance.

 

[nicro3]

Give arrowed blue nut a gentle nip up clock wise with pump pliers if you have them to start with

 

[Sweeney125]

Thanks nicro3, that has certainly slowed the dripping considerably but not entirely

 

[PlumbBobBob]

you could probably do with a new diaphragm washer in the valve. over time they do stiffen up out of shape.

 

[SimonG]

Knock the water off and dismantle it, as steveb says change the diaphragm whilst your on and a new washer on the leaking side.

 

[Avatar]

or bung a new one in as you can get them cheap (as long as you don't go to 'wee and poo'!)

Definitely don't use PTFE on the thread - it is the wrong application for that.

 

[TBServices]

or bung a new one in as you can get them cheap (as long as you don't go to 'wee and poo'!)

Definitely don't use PTFE on the thread - it is the wrong application for that.

Agreed. Get a fluidmaster put in there

 

[Sweeney125]

Any particular model?

 

[Sweeney125]

Is the Fluidmaster 400UK093 bottom entry float valve (Product Code: 171097) a suitable choice?

 

[JCplumb]

I doubt very much that anything other than a traditional style float valve with arm and ball will fit in there behind your handle. So the part you have in mind wouldn't fit.
I've fitted the brand 'delchem' before without problems, but to be honest your current one looks like a delchem, I don't think they're made to last for ever. See if you can find a brass one but you will have to shop around to find a bottom entry brass valve.

 

[JCplumb]

If you could get the pipework swapped over so your valve is on the left and your overflow is on the right - then you could fit a fluidmaster in there.