Installation Instructions

www.prosourcecenter.com
Rev 5/30/2019
14. When adding an additional overlapping piece of WP membrane, work notched thin-set mortar over the
marked out section including an overlapping section on the previously installed membrane. Use the
dashed line as a guide for how much overlap of thin-set to provide. Install this an any remaining pieces
with the same exact installation procedures.
15. After all corner, edge and wall sections have been completed, install the final floor piece or pieces that
were previously cut and set aside. Trowel out 3/16” notched modified thin-set mortar over the entire pan
area including the pocket of the pan where the drain flange will install. Using ABS or PVC glue appropriate
for your plumbing, work glue on the inside fitting of the outlet of the drain flange and the outside area of
the top of the 2” plumbing coupler pipe you previously set up. Simultaneously seat the drain flange into the
thin-set at the pocket of the pan while gluing the outlet of the flange onto your plumbing. Press down to en-
sure a good seat before the plastic glue sets. If you have complete access to the plumbing underneath,
you may break this process into two steps - that is set the flange in thin-set and allow to cure, then later
access the plumbing underneath to glue the pipe to the flange outlet.
16. Now trowel out 3/16” notched modified thin-set
mortar over the “fleece” region of the drain
flange. However, DO NOT yet apply thin-set to the
center pocket recess of the flange. Position,
press in and set the floor piece(s) using the same
installation techniques used previously.
17. Carefully trim out the membrane covering the center flange recess with a sharp
utility knife. Use the straight edge of a trowel to ensure that the membrane at the
edge of the cut remains well bonded to the flange.