Soil pipe too far from wall

[rreanor]

I have just removed my old toilet to replace with a new one. The toilet was a u bend one and connected to the cast iron soil pipe which pops up above the floorboards, then goes vertically down 6 inches under th floorboards where it bends 90 degrees and travels horizontally for 2 feet before dropping down into the sewer.

The problem is that where it pops up above the floorboards is far too far from the wall for the new toilet and would result in a 8 inch gap behind the toilet.

Can I just attach a flexible connector from the new toilet to come back on itself about 6 inches to meet the soil pipe?

 

[Exedon]

What you propose is just a good way to spend a lot of time clearing blockages.
Simple way build a boxing behind it to bring cistern forward.
Better way alter soil pipe tho to be truthful as its cast may be beyond diy capability (beyond some plumbers from what I've see!)

 

[Deleted member 267285]

Whilst you can probably do it, it wouldn’t be advisable. Is there no way of offsetting the connection?

 

[JohnD]

what is the distance between the wall and the centre of the soil pipe?

there are WC pans made to fit such jobs.

Is the floor concrete?

some photos would be useful.

inside and out

include the nearby manhole cover

 

[rreanor]

what is the distance between the wall and the centre of the soil pipe?

there are WC pans made to fit such jobs.

Is the floor concrete?

some photos would be useful.

inside and out

include the nearby manhole cover

27cm. I'd be happy to get a different toilet as I can use this elsewhere but even new u bends aren't that distance!

The attached is with the new toilet in position, as you can see the toilet would be absurdly far from the wall even with a box built behind. The soil pipe goes down the horizontally under the floorboards towards the top of the pic where the skirting board is then goes down into the main stack

 

[JohnD]

I happen to have a Twyfords E100 bottom-outlet WC, very pleased with it, but it has a 215mm gap wall to centre of soil pipe

there are a few others of varying sizes.

pic...

the last sheet of drawings says 230mm, not sure if this is from a different version. It is from a file marked "square" and mine is the "round." different cistern shape I think.

 

[JohnD]

this little pic explains difference between HO and BO pans.

I also looked at Galeria and Alcona WCs, but have not kept the details

I think you want a BO pan

 

[rreanor]

this little pic explains difference between HO and BO pans.

View attachment 272700

I also looked at Galeria and Alcona WCs, but have not kept the details

I think you want a BO pan

Does it matter if it's horizontal or bottom? Presumably if it's horizontal I can just add a 90 degree pipe connector?

 

[Schrayder]

Imo get the correct part which "works" rather than having to "make it work"
Avoid unnecessary changes of direction.

 

[lostinthelight]

I had the same issue so fitted p outlet pan with 90 degree connector and fitted cistern against a spacer frame with a piece of granite on top

 

[Madrab]

The easiaest and best solution would be to move that soil pipe outlet, especially if you have a wooden floor and acccess wouldn't be that difficult.

 

[rreanor]

The easiaest and best solution would be to move that soil pipe outlet, especially if you have a wooden floor and acccess wouldn't be that difficult.

Yes I was thinking this, rather than buy a toilet which may or may not be correct. I was thinking of cutting out the first 2 feet of pipe and replace it with pvc section connected with a coupling, then offset the Pvc section so that it gradually meets the wall. This way there are no additional bends than there were before. Attached is the pic with the proposed route.

 

[Madrab]

Given the orientation of the floor boards, I would have expected the joists to run from right to left (as seen in the pic) rather than heading up, which look as if it would be then be through the joists?

 

[Nige F]

Get the boards up and post a picture - then we can tell what lies beneath

 

[lostinthelight]

Looks like old pipe could be running between two joists. If so could you shorten the existing run , fit a new socket closer to the wall and turn the toilet 90degrees ? thats if theres not enough room between the joists to offset it closer to the wall in its present location