I have a small bathroom (6' x 7') that I want to lay tiles in. I'm on the ground floor of a 40 year old condo, so the floor is concrete. There's about 1/4" difference in height between the low and high points. I would like to use Quickcrete PSI 6000 (mixed to the thinnest consistency recommended) to level the floor. Will that work? I would go buy proper SLC, but I don't have a vehicle so getting home with 50lbs of mix will be difficult.
There's still some glue and other residue from the old linoleum floor left in the low spots. Will that affect the finish?