The tiling in the bathroom is either polyvinyl chloride or linoleum, I don’t know which. What is a good cleaner for it? Ammonia doesn’t seem to work, what should I try?
If the floor has been repeatedly waxed and there is a buildup of embedded dirt in a wax coating, then you should get some commercial floor stripper. That will clean the floor down to the bare vinyl/linoleum.
If it is PVC you might try some PVC cleaner .