Connecting modern toilet to old set up.

[MoonMan2]

I need to replace one of my toilets (downstairs WC). Please see pic below.

I am fast realising a big challenge is my toilet is an older one (1998) where the soil pipe inlet is set further away from the wall (19.5 cm) compared to modern ones. The horizontal pan connector (17cm from wall) is adding to the complication as many modern toilets extend back, some near touching the back wall.

As stated; the problem is modern toilets tend to have a soil pipe outlet around 14cm from the back wall. Installing a modern toilet would cause the cistern to be a few centimetres separated from the wall, hardly aesthetically pleasing and a waste of space too.

Can anyone suggest a workable solution to this? Ideally, I would be able to connect a new toilet to the existing set up with the new cistern flush (no pun intended) against the back wall. Or would I need to adapt something in some way?

I also have a specific question. How far (in millimetres) does the soil pipe outlet from the back of a toilet penetrate into a (90 degree) pan connector?

 

[jj4091]

False wall?

 

[endecotp]

Would a “space saving” pan connector help?

https://www.screwfix.com/p/mcalpine-rigid-90-space-saving-pan-connector-white-354mm/23036

 

[MoonMan2]

Thanks for these ideas.

The "space saving" pan connector could not be inserted past the halfway point of the soil pipe due to its bend, meaning it would stickout more from the soil pipe inlet. This would result in the toilet having to be moved a few centimetres to the left which would look unbalanced. The room is tiny!

 

[trojanhawrs]

Thanks for these ideas.

The "space saving" pan connector could not be inserted past the halfway point of the soil pipe due to its bend, meaning it would stickout more from the soil pipe inlet. This would result in the toilet having to be moved a few centimetres to the left which would look unbalanced. The room is tiny!

Not picturing what you're trying to say here. Pretty sure you would just need to cut your existing waste pipe back a bit to accommodate.

 

[MoonMan2]

This is the soil pipe. It's quite thick, I'd say about 3mm. This soil pipe is also rock hard. I think it would be difficult to cut.

This a close up of the thickness of the soil pipe. Anyone know what material this is?

 

[trojanhawrs]

It may actually be asbestos cement which isn't ideal. .

 

[Hugh Jaleak]

Soil pipe looks to me like it's plastic, decent saw will soon have a section off the end if you need to.