Prespray with Harvard Chemical Free rinse pro, acid rinse, boosted with 20 vol Sally's.
Then rinsed with some Fury from Harvard
Here is Big Momma my PMF 703 rinsing
The after pics
This job was recommended to get replaced, 2nd time I cleaned it. I got the ole "Just do what ya can!" I informed that I would not clean it again and she needed tile installed. Surprised it wasn't dripping downstairs from the ceiling.
Heck ya I gots paids. Me charged a pretty penny extra too fur deez nasty's.
I have not dumped yet so I can freak out the kids waiting fur da bus in the morning. It's hilarious win day look around to sea what dat disgusting smell is n the air.
Those where some very deep rust stains, the shit stains rinsed right out. The pics with the arrow under them are video's.
I couldn't get those rust stains out last year either. They will be yellow by Monday anyway.