Tile In Shower Base (Flexing)

Brianintheusa

I'm looking for some advice.

I'm remodelling a shower. I taken out the old porcelain shower base and am replacing it with a tile-in base.

I applied about a one inch layer of mortar to the floor to level and seat the base.

Here's my question/problem. The plumbing comes up through the floor to connect to the bottom of the shower tray. I think some of the mortar has fallen into the hole in the floor (where the plumbing comes through). What this has created in that the tile-in base will flex about 1/8" in places when you stand on it.

I'm just about to start tiling the base. Will the tile adhesive and the grout strength up the base or will it crack the tile (or grout).

Do I need to, some how, lift the base and re-lay the mortar? Is there any other product I can use to stiffen up the base? If I do need to lift the base is there any advice on how to do this? I scared I'll crack the base.

Many thanks.

ranman469

do not continue. it needs to be firm. some shower bases have a plywood bottom others don`t. the cement is the best idea. i install them with a full bag of sand mix cement or more,and push the base in to the cement.
if it flexes it will crack in time. good catch

Marlin

It defiantly needs to be repaired.

Brianintheusa

Thanks for the responses

Any idea the best way to get the base back up without cracking it? I used a preset base compound from Lowes. The think looks like its adhered to the bottom of the base. Is there a better product when I have to relay the base?

This is my first time on this website. I want to compliment you all on a nice, friendly and helpful forum.

Marlin

I can make the pan and I can set the drain but when it comes to cement and tile I'm lost. You're may have better luck over at John Bridge tile forums for tile and shower pan questions.