Forum Title: Shower Flood Test???
I have a shower with a traditional mud pan where I made a masonry pre-pan, installed a liner and then put down the mud pan. I'm at a point where everything is waterproofed and ready to tile. This morning I put kerdi membrane over the curb and will need to let that dry at least overnight. I'm considering doing a flood test before tile. Mostly to make sure that I didn't damage the exposed liner above the level of the floor. Specifically, I left a 1 gap between the floor and the bottom of the durock so that the durock doesn't wick up water. The gap will be covered by the wall tile. Anyway, its very unlikely but possible I nicked the liner while working. It just seems to make sense to me to test it before I put the expensive tile on the floor and walls. For the test, the water would have to penetrate the masonry down to the liner and follow the liner to the weep holes at the drain. Obviously I would plug the drain. What is everyone's thoughts on this? The pan was poured 3 - 4 weeks ago. How long does the kerdi on the curb need to cure before I could fill the pan with water?
Category: Tile Post By: Mia Jackson (Cincinnati, OH), 02/11/2019

How did you seal the kerdi-liner joint? How are the walls waterproofed? Kerdi should cure 24 hours before a flood test.

- ARLENE STEELE (Tamarac, FL), 05/18/2019

The walls have kerdi membrane. There isn't a kerdi-liner joint. The liner goes behind the durock and the kerdi membrane is on the face of the durock to keep water from migrating through the durock.

- JOHNNIE CHANDLER (Surprise, AZ), 05/10/2019

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