Geberit flushpipe leaking below cistern

[gardenerdave]

Hi all, new to the forum but here goes.

I have a geberit montage system and the flushpipe to cistern is leaking, it only leaks when the flush is used, presumabley it needs a new seal and clip/ My question is, can i changed this seal and clip without dismantling the pan setup?

 

[buck51]

http://www.lmgtfy.com/

Sorry but yours is a typical first post, try finding a picture of your toilet and post a link then see if you can get the parts on line and post a link.

maybe then when we can all see what your on about you will get a response.

 

[Galoka]

And whereabouts is the leak? by the cistern, or by the toilet pan?

 

[Charnwood]

http://www.lmgtfy.com/

Better still: http://www.lmgtfy.com/?q=Geberit+Montage

 

[buck51]

Prior to me posting this had 27 views and no response!!!

 

[gardenerdave]

Sorry about the lack of info, will get back to you soonest.

Thanks

 

[Madrab]

Prior to me posting this had 27 views and no response!!!

Maybe the 27 people who viewed didn't have any idea about it?

 

[gardenerdave]

Been online and managed to find this:

http://www.tapoutlet.co.uk/geberit-109-720-00-1-white-concealed-dual-flush-pneumatic-cistern.html

The leak i have is coming from under the cistern where the flushpipe enters, it leaks every time it flushes down the outside of the pipe, when the flush is not used there is no leak.

 

[Charnwood]

It's a push-fit joint. Try pushing it in.
Is it braced, as per the manufacturer's instructions?

Instructions: http://catalog.geberit.com/File_Container/Documents/Instructions/W_964.273.00.0_00.pdf

 

[gardenerdave]

Thanks Mark, yes it is braced, and it is still at 90 degrees to the cistern, doesn't look as though it could have dropped.

Dave

 

[Charnwood]

Because of the (bad) design of the flush pipes on some modern concealed flush pipes (sharp 90° instead of swept) water hits the bottom of the bend at a rate of knots instead of sweeping round, with the adverse effect you do not want in a concealed installation.

To make matters worse, some start out as 2" and reduce to 11/2".

 

[gardenerdave]

Just had a quick grovel around the back of the cistern and managed to look at it sideways on, and the flushpipe is raised slightly towards the cistern bottom, therefore it is not level as required in the diagram.

as you may have guessed the flushpipe is 50mm tapered to 40mm to the pan, as shown here, this is my system.
http://www.tapoutlet.co.uk/geberit-...matic-cistern.html?source=cj_3924303_11045310
My questions are:

1. Could changing the seal in the cistern outflow cure the leak?
2. Can the flushpipe be removed without dismantling the toilet pan?

I have accsess to the required parts

Cheers Dave

 

[Charnwood]

1. Probably not possible as it's a push fit joint. Did you say it is available as a spare?
2. Yes' if you cut it, but the pan will have to come offf to fit the new one, or if you fit a new seal in the cistern outlet.

The leak is probably due to the f/pipe not being square in the outlet.

 

[gardenerdave]

Thanks Mark, yes the seal is available as a spare plus holding clip.
I didn't really want to disturb the pan.

Does this sound feasable----

!. cut the flushpipe and remove
2. remove old cistern seal and clip
3. replace the cistern seal and clip
4. replace the flushpipe and make good the cut with a push fit straight connector (drainage type)
5. brace the flushpipe

I know it is a bit of a bodge job, but i really don't want to move the pan.

Cheers Dave