Convert vertical toilet waste

[pereter]

I currently have a floor standing pan in a downstairs cloakroom. The waste is vertical about 10mm on the inside of a 2- brick external wall.

As I'm completely retiling the room, can I fit a connector that runs horizontally behind the current waste below floor level( by cutting off some of the current soil pipe) and then run it upwards by chasing out some of the wall and then connecting a horizontal connection to the pan?

This would allow the new toilet to be horizontal and allow a wall hung pan to be installed. All of this would mean the pan could be flush to the wall and no need to box in the waste.

I think Geberit have an S bend kit. Anyone see any issues with this?

 

[Ben-gee]

If it’s only 10mm from the wall, you can just come straight up from there.
Assuming you are using a wall hung frame with built-in cistern, this requires you to build a false wall/ half height boxing to accommodate the frame - there should be no need to alter the waste under the floor or chase out the wall ( well maybe a few mil to accommodate ring seal fittings.)

You have less work to do than you feared!

 

[pereter]

If it’s only 10mm from the wall, you can just come straight up from there.
Assuming you are using a wall hung frame with built-in cistern, this requires you to build a false wall/ half height boxing to accommodate the frame - there should be no need to alter the waste under the floor or chase out the wall ( well maybe a few mil to accommodate ring seal fittings.)

You have less work to do than you feared!

Thanks, but that would spoil the look of the room. Marble tiles, wall hung toilet and a visible waste pipe! Looking to put in a Roca in-tank toilet with no separate cistern or frame.

Ive attached a tech drawing.

If it’s only 10mm from the wall, you can just come straight up from there.
Assuming you are using a wall hung frame with built-in cistern, this requires you to build a false wall/ half height boxing to accommodate the frame - there should be no need to alter the waste under the floor or chase out the wall ( well maybe a few mil to accommodate ring seal fittings.)

You have less work to do than you feared!

 

[Ben-gee]

Well no there wouldn’t be a visible waste pipe…

However I based my comments on the erroneous supposition that you would have a cistern.

My bad, as they say, good luck with your project.

And yes proceed with the geberit s bend kit, unless you can go straight out through the external wall and into a stack? This would be a better option.

 

[Timmy D]

I lowered a 4” clay vertical soil pipe yesterday, here’s a little tip.

Get a diamond disc (I used one of these). It has a 10mm hole. Then get a couple of washers and lock nuts and enough 10mm threaded rod to reach down far enough to make the cut.

Use the nuts and washers to mount the disc on the rod and tighten it on. Then stick the other end of the rod in a drill and you can use it to internally cut the 4” clay before breaking it out, preventing the clay from cracking and causing big headaches!

I doubt it’s needed but if you want a pic of said tool, I can post on Monday when I get back to the job.

 

[pereter]

Well no there wouldn’t be a visible waste pipe…

However I based my comments on the erroneous supposition that you would have a cistern.

My bad, as they say, good luck with your project.

And yes proceed with the geberit s bend kit, unless you can go straight out through the external wall and into a stack? This would be a better option.

Thanks mate for the reply. Unfortunately the stack is at the back of the house and the cloakroom as at the front. Just wanted to check there was nothing glaringly wrong with my plan !