11. Nail in 2x6 blocking to anchor the rear toilet
mounting brackets. Fit the chair carrier in the opening to check the location
of the drain hole and the position of the mounting block. The front surface of
the framework should be flush with the face of the studs.
Click image to enlarge.
12. Dry-fit the PVC piping assembly for the
wall-hung toilet, shower trap and sink. After you’re satisfied that the
dimensions are correct, solvent-weld all the joints in the assembly and join it
to the existing ABS main stack using a transition coupling.
Tip
When dry-fitting PVC, pipes won’t
seat completely in fittings, so add 1/4 in. to all cut lengths. The solvent
will lubricate fittings so the pipes will slide in all the
way.
Click image to enlarge.
13. Toenail 2x6 blocks in the center of the shower
36 in. above the floor for the shower valve and 6 ft. 6 in. above the floor for
the showerhead. Position the valve block so the plastic mud guard on the mixing
valve will be flush with the finished wall surface. Attach the shower supply
line and the hot and cold supply lines to the valve. Clamp the valve body and
shower supply line to the blocks with copper pipe straps. Run copper water
supplies to the new locations for the sink and toilet.
Click image to enlarge.
14. Place the shower base and mark the drain
location on the subfloor. Remove the base and cut a 6-in. wide hole. Tighten
the shower drain to the shower base. Predrill 1/8-in. holes through the
mounting flange into the studs and screw the base to the wall studs with 1-5/8
in. galvanized drywall screws.
