Danny Bates
New member
Here is a funeral home I have to do this week. The surface is like plaster with pea gravel shoved into it. The brown color is just dirt it came off easy but the upper black color i'm guessing is algea or mold, it didn't come off as easy. I had to get pretty close with my wand to get it off then the gravel started coming out. Will a good strong house wash mix take it off at low pressure. I have 12% and simple cherry for the mix.