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How to repair a flush pipe?

I have a toilet with a low level cistern which has a small flush pipe as well as the main downpipe, I noticed a wet patch around the base of the toilet & then investigated further (all the cistern workings including pipes are encased in a wooden shroud), anyway it looks as if the smaller flush pipe has a "dripping" leak, this is dripping onto the bigger pipe and then onto the floor. Given the very limited view i have I can't seem to see water coming from anywhere else.

Bearing in mind that i have no plumbing expereince and that I'll have to work out how to take the shroud apart first, what's my best course of action with regards to fixing the problem & what I'll need to buy..

If possible please can you provide step by step info.

Any help etc would be greatly appreciated.

Regards

Dave

Dave
January 2008

D.I.Y, Toilets Repair Flush Cistern

how far do you push the flush pipe up into the cistern

e tennant
July 2013

Thanks for the reply John.

After further investigation & several bodged attempts the leaks seem to be resolved/repaired.

In addition to a fair bit of condensation there was a slight trickle coming from the base of the cistern and a flood coming from the back of the toilet.

Anyway the cistern sealing has had ptfe put onto the thread & has been tightened. As a precaution plumbers mate has been added around the joint, as for the flood the pipe has been pushed back into the toilet and again encased in plumbers mate, as a result there is no flush pipe movement at all.

The carpet / flooring is drying out nicely and a small dehumdifer installed to help with condensation.

Dave
January 2008

If I read this correctly Dave you have a loo with a separate cistern - that is one that is not sitting directly on top of the toilet pan (close coupled type). The leak is coming from the wash down pipe - it is a push fit into the toilet pan, and it gets its seal from a convoluted connector that is a tight fit on both the wash down pipe and the pan itself - these are available from Wickes, B&Q etc. The top of the wash down pipe is sealed with a rubber washer behind the large plastic nut, that screws onto the cistern bottom. Usually problems here come from the cistern and the loo not being at 90 deg to eachother. Be prepared to use some silicone sealant to help you on the bottom connection if necessary.

John
January 2008