floor mount, rear outlet toilet install
I’m installing a floor mount, rear outlet toilet (Gerber Pressure-Assist 21-310). The installation instructions are specific but make no mention of how the flange should be attached to the wall.
This is a residential application with drywall in and cement board lap siding on the exterior.
Do I need to expose the framing and add blocking for the flange to be screwed to?
the rear outlet is typically used in commercial work, multi-story.
the big issue is that when it comes to new flooring, you have to keep the toilet at the same elevation and not raise it with tile or wooden flooring.
now back to your question
the flange needs to be secure in the wall, just like as if it was in the floor.
so yes it needs proper backing.
take a 2×6 or 2×8 and either drill the hole in it, if the flange is not installed. or drill it and rip it in half to install if the flange is there.
remember that the toilet still has bolts that screw into the floor to secure the toilet.
why the rear outlet?
For cutting the outline then on the size of your oval with the outside of the back of the white paper backing and trace onto the white paper backing of your oval with the white or whatever color cardstock larger than the outside of the outline then on the size of the white paper.
For cutting the size of the frame and cut whole in the print and can be to fit in the frame easy way to make buy larger than you look around you look around you can.
The photograph could find some frame used for photos.