Discuss Leaking bottom inlet on toilet cistern. in the Plumbing Jobs | The Job-board area at PlumbersForums.net

Is it sat flat? I’ve had a few cisterns recently where the hole was making the rubber washer curl at the side slightly due to poor manufacturing.
 
Is it sat flat? I’ve had a few cisterns recently where the hole was making the rubber washer curl at the side slightly due to poor manufacturing.
Is a cheap suite and with good reason. The hole is not particularly level, have removed lumps and bumps but is I suppose on closer inspection expecting a single washer to work hmmm:( Hopefully the Stixall will sort it.
 
Fit the fill valve into the cistern and before you put the plastic nut on and tighten it run a bead of clear silicone into the gap between the hole in the cistern and the thread of the fill valve. Fit the plastic nut and tighten sufficiently to compress the washer at the base of the fill valve inside the cistern but don't over tighten it. :)
 
The hole is the cistern where the tail of the valve goes should never see water.
The seal is between base of cistern and flange on bottom of fill valve. This is always possible to do, sometimes sealant is required due to poor moulding of ceramic.
 

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