"Spud" wrote in message
...
Hello all,

I recently had to replace the entire floor in a custom tile shower. The
original had a lead shower pan that had deteriorated over the years and
was
leaking. I had to tear the whole thing out down to the subfloor and have
replaced the lead pan with a vinyl pan and filled with mortar in
preparation
for the new tile floor. My question is, should I seal this mortar with a
masonry waterproofer like Thompson's or UGL Drylok before installing the
tile with thinset mortar?? My thinking is this will help prevent
moisture/water from seeping down thru the mortar bed in the first place.
My concern is, will the tile thinset mortar bond with the mortar bed if I
treat it with one of these sealers. I don't want to have tiles popping
up
6 months down the road.

Thanks for your help,
Spud



Don't do it! If your vinyl liner is installed properly there is no need. Did
you put a pre-slope in under the liner(give it some fall to the drain)? How
far up the wall did you run the liner? It should go up higher than the curb.
You should have a clamp type drain with the liner run under the top flange
and clamped down tightly. You also should haveput some small gravel under
the weep holes of the drain to keep the mud from clogging them.