Do how much thin set do I have to remove before I reptile, or do I really have to destroy the concrete floor and build a new one? I feel like enough thin-set is off the floor (although it is my first time). See pics.
If your pan is leak free and sound, then you only need to remove any flaky or raised thinset. Basically, you need to have a fairly smooth surface to install the new tile.
Since it looks like you are completely retiling the shower the only place that you may have to make any adjustments will be at the drain. That drain style is designed to be adjustable to fit the mortar and tile thickness, but this is a one-time adjustment. You may need to make a trim ring of PVC taken from another similar drain to extend the drain upward to handle the extra thickness of new thinset and tile. This will allow the drain grill to be flush with the tile surface.
Other than that, if the existing is fairly smooth then you are ready to tile.
after you remove the material you want
plug the drain and fill the shower pan with water
let sit for 24 hours...better to find a leak now than later
you can get a plug for testing showerr drain at a plumbing supply..$6.00
Thanks A BUNCH!
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