John P
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| posted on 4/7/11 at 06:28 PM |
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Leak between toilet cistern and pan. Any ideas?
Fitted a new close coupled toilet today and have a quite significant leak between the cistern and pan.
The fixings for the cistern pass through the ceramic rather than the traditional plate fixed to the flush pipe so rely on a conical rubber seal to
prevent them leaking.
Unlike some other toilets I've fitted the cistern is the same width as the pan so these fixing bolts don't have a nut and washer on the
outside of the cistern but simply rely on the wing nut and washer which holds the citern to the pan.
To make it more difficult the inlet passes through an oversize clearance hole in the pan to reach the cisstern float valve connection.
Once it's all together I get a persistent drip from the clearance hole in the pan (the one which the inlet flexible passes through) but I think
the leak is actually coming from one of the fixing and the water simply finds it's way out from this hole.
I took the cistern off and fitted the fixing bolts through the cistern so I could check where the leak was coming from. I filled the cistern with
water and left it for a few minutes and there was no leak so I think this eliminates the inlet pipe and flush pipe.
When I re-fitted it to the pan however the leak was back. This happens even if I just pour some water into the cistern without connecting the supply
or flushing it so again it seems to point to the fixing bolts.
Before packing up I smeared the fixing bolts inside the citeren with Fernox LS-1 leak sealant and have left this to dry.
Any other suggestions? I've wasted over 4-hours on this today and am no further forward.
John.
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splitrivet
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| posted on 4/7/11 at 06:46 PM |
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Have you fitted the rubber washers onto the cistern fixing bolts, I found with mine that over tightening the wing nuts also made them leak had to undo
them reseat and tighten to gentle finger tight.
If you have a leak before flushing its the bolts or flush mechanism not sealing, a leak on flush its the rubber doughnut, mine took a few attempts to
get right.
Cheers,
Bob
I used to be a Werewolf but I'm alright nowwoooooooooooooo
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Ninehigh
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| posted on 4/7/11 at 07:42 PM |
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Similar thing happened to me, I used that Fix It putty they advertised. Rammed it in every gap there was until it stopped leaking
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macc man
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| posted on 4/7/11 at 07:42 PM |
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This is quite a common problem. Advice on instructions is not to use any sealant but I find 50% leak if not used. Hence I always use clear silicon on
all rubber parts before assembly. Saves problems later on. Sometimes the foam seal between pan and cistern leaks after a few months. Here again
silicone does the trick. Did you check for burrs on the porcelain. Lots of poor quality
pottery out there.Best of luck.
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