It's really funny that the phone call came right before Halloween is coming. To clean some headstones in a graveyard.
Does anyone have any suggestions besides pressure washing at 1000psi hot water? Should I use some mild acids and rinse with a lower psi?
Has anyone done this before?
Does anyone have any suggestions besides pressure washing at 1000psi hot water? Should I use some mild acids and rinse with a lower psi?
Has anyone done this before?