Fitting a cistern (with frame) into a stud wall (100mm) (follow-up)

[Bjoern]

Hello all,

This is a follow-up to this post: Fit wall-hung toilet to inside stud wall? - https://www.plumbersforums.net/threads/fit-wall-hung-toilet-to-inside-stud-wall.127877/.

I'd like to fit a cistern into a stud wall, which is 100mm wide. Typically, the dimensions of the toilet fixing frames are around 140mm, obviously needing to accommodate the soil pipe of around 100mm.

However, I've googled this a bit, and it seems that it's possible to fit one of the slimline toilet frames within a 100mm space. For example, Minimum thickness of stud wall with this toilet frame in it? - https://forum.buildhub.org.uk/topic/22286-minimum-thickness-of-stud-wall-with-this-toilet-frame-in-it/.

Do you have experience of this? Given that the soil pipe is around 100mm, how will this work? Any other ideas?

Overall, I'd like to avoid boxing of the entire cistern, though I don't mind boxing the toilet up to the height of the toilet (if you see what I mean). I've attached a diagram, see the bright-red box behind the toilet. (Obviously, the fixing frames cannot have the toilet too far out.) However, there don't seem to be any toilet fixing frames like that.

Any advice greatly appreciated!

 

[oz-plumber]

Cut the soil pipe off at floor level.
The pan comes with a smaller diameter soil pipe that has adapters to go into 100mm pipe.
This is all set up when you install the wall frame and cistern.

I personally hate the cisterns that fit into 100mm walls.
They are so hard to work on, that now I tell the customer to call the manufacturers / suppliers for most repairs.