Blue Monarch
Supportive Member
Here's the scenario. This is an older building which hasn't been maintained all that well. Part of the problem is that wax has been applied to this floor as well. The floor cleaned up nice (dark spots are still wet), but the mop slop on the wall won't budge.
Originally, I cleaned with a stripper/high ph mix and a turbo. The turbo tilt method didn't even phase the wall. Next, I tried the wall by hand scrubbing with a grout brush. First I tried stripper, then high ph, then viper renew. Lightened a bit, but not acceptable.
Any ideas besides coloring? Any reason the wall won't clean, but the floor will? Possibly because it's unsanded grout?
Originally, I cleaned with a stripper/high ph mix and a turbo. The turbo tilt method didn't even phase the wall. Next, I tried the wall by hand scrubbing with a grout brush. First I tried stripper, then high ph, then viper renew. Lightened a bit, but not acceptable.
Any ideas besides coloring? Any reason the wall won't clean, but the floor will? Possibly because it's unsanded grout?
