toilet soil pipe wont stay on!

SplanK

well had an interesting night last night

since we had the bathroom fitted, a month or so after the loo pan started to leak water. I thought at the time that the seal for the in pipe was the cause as the seal was not all the way in. Pushed it in properly and this fixed the issue.... until yesterday when it started again. Checked the in seal - bone dry so the only thing it could have been is the soil pipe...

cutting long story short.... after using 2 waste pipe seal units - they both "ride" off the outlet on the pan.... they just dont want to stay on at all...

the only thing i can think of is that the pan outlet is slight tapered so its smaller towards the end - resulting in the seal - which will always want to try and take its original shape - pushing itself off the outlet...

Any suggestions before i go and replace the pan? (back to the wall)

keystone

SplanK wrote: »

well had an interesting night last night

since we had the bathroom fitted, a month or so after the loo pan started to leak water. I thought at the time that the seal for the in pipe was the cause as the seal was not all the way in. Pushed it in properly and this fixed the issue.... until yesterday when it started again. Checked the in seal - bone dry so the only thing it could have been is the soil pipe...

By in-pipe I guess you mean the flush pipe and that its a low level (or possibly concealed) cistern rather than close coupled. The flush cone (what you have called the seal) supplied with most loos is normally a cheap plastic flimsy finned thing. These are carp! I throw them away and replace with a proper rubber one. Don't necessarily rule this out as the source of the leak.

.....cutting long story short.... after using 2 waste pipe seal units - they both "ride" off the outlet on the pan.... they just dont want to stay on at all...the only thing i can think of is that the pan outlet is slight tapered so its smaller towards the end - resulting in the seal - which will always want to try and take its original shape - pushing itself off the outlet...

Any suggestions before i go and replace the pan? (back to the wall)

A lot of them are tapered and some come with oval rather than circular spigots - particularly the cheap ones. There is no reason that you shouldn't be able to achieve a seal and I'd be looking at the pan connector first. If its a straight connector it doesn't sound as if its long enough and if its an elbow then it sounds as though the soil pipe is under some stress and its pulling the connector off the back of the pan - so it may need an extension.

What I don't understand is that you said "a month or so after fitting it started leaking". Why haven't you called the installer back to rectify this issue rather than trying to do it yourself?

Cheers

olias

I agree, call the installer back to fix! Failing that, as stated, an extension piece may be required, or a better quality seal. If the toilet (pan) was a cheap one, I have heard that they can be badly cast leaving a slightly oval pipe where it exits the pan IYSWIM. If that is the case then I think you may have trouble sealing it well.

Olias

Tucker

I can't understand why the waste pipe is able to slide backwards, once the loo is in place?

I would expect it to be pretty solid with little ability to move backwards, let alone slide off?

When I fitted mine, I did need an extension piece, which I then cut to size, so the loo could be pushed back into the waste and once the toilet is fixed to the floor, nothing can move.

keystone

Because you are only seeing a horizontal connection to the stack in your minds eye using a straight (if you are lucky most likely an ofset) pan connector.

In cases where the soil pipe is vertical it needs an elbow pan connector. The soil pipe won't be able to move if its an older saltglaze or CI pipe. However in more modern houses it will be plastic. Inevitably modern houses have internal plastic stacks which are not always that well supported by the builder. An elbow pan connector fits snugly in the stack. If the distance from the back of the loo is slightly too great the elbow can be pulled back from the pan by the stack and thus off the spigot.

Hope that make sense.

Cheers

keystone

olias wrote: »

........I have heard that they can be badly cast leaving a slightly oval pipe where it exits the pan IYSWIM.

Yes that is what I was driving at in my post above although I didn't express it that clearly. You could easily add the words "and nasty" after cheap. But hey a toilet pan is a toilet pan isn't it?

Cheers

27col

I had a similar problem with a back to wall pan and a concealed cistern. It was necessary to jam in a wooden batten to make sure that the pan connector could not move backwards when the pan was pushed onto it.

SplanK

the reason for the post was to see if i could fix myself in a quicker time - we were not sure if we could get the fitters back any time soon and having no loo what so ever would have been a pain... however good news... as the fitters are close friends of my OH's dad, we managed to get them back around today to fix the whole lot properly

the pipe that was used initialy was a flexible connector - the pan waste was glossed fully - so we are assuming that the problem was down to the pants seal not been able to grip on properly - this working its way loose over time esp as the pipe that was used was a flexable one. The loo has a conceiled low level cistern, and a back to the wall pan - which i think the pipework was... errm... IMHO bodged which they thought they could get away with.

however they have now removed the flexible pipe completly - replacing it with solid pipe - and also placed jammed the pipe so its not able to move backwards again

joys!

keystone

SplanK wrote: »

errm... IMHO bodged which they thought they could get away with.

Sounds like it on the basis that no-one would see what they had done. :rolleyes:

however they have now removed the flexible pipe completly - replacing it with solid pipe - and also placed jammed the pipe so its not able to move backwards again

Thats good but its also left the pipework under stress. Multiqwik do such a large range of different sized and shaped pan connectors that it must have been possible to get one to fit that didn't stress the pipework. Lazy not to get the right one IMO!

joys!

Anyway - if you are now happy. :j

Cheers