Should have used a geberit frame, the 90 degree pipe has about 6 different depth positions!!!! Not very helpful now, I know.
There will be enough play in the 4” to gain 20mm across a room don’t worry.
What you need to do is;
1) unscrew the soil pipe clips
2) position the frame where you need it and fix it firmly.
3) reattach your pipe clips to the wall using shims/ bits of ply etc of the appropriate thickness.
There will be enough play in the 4” to gain 20mm across a room don’t worry.
What you need to do is;
1) unscrew the soil pipe clips
2) position the frame where you need it and fix it firmly.
3) reattach your pipe clips to the wall using shims/ bits of ply etc of the appropriate thickness.