I have several questions about laying plank porcelain tile on a concrete slab.
First do I need to get 100% of the glue from the concrete floor, there are small spots and patches here and there that still have a very thin layer on it. I used glue remover to get as much as I could off.
Secondly there is paint spots on the floor from when the house was first built, do I have to remove 100% of this material, I scrapped and scrapped and I am getting tire of it. There are also spots left from when I sprayed texture, does this have to remove 100%.
My final question is should I should I use self leveling concrete on the slab, I notice when I poured water on the floor there where some low spots, what is acceptable and what isn't?