Originally Posted by
High_Plains_Drifter
It's cement... and I'll tell ya, you wouldn't touch the dark green/black mold that grows on it by just scrubbing. It's on the north side of the shop so it doesn't get much light, and even though it's got a decent pitch to it so the rain runs off, that dang mold still grows. The power washer with 3,100 psi is the only thing that will touch it.
I presumed it was wood.
In this case, get some granulated chlorine from a swimming pool supply place.
Scrub that on. That is how we treated our pool decks at the training center.
I have lost my mind. If found, please give it a snack and return it?
"I won't be wronged. I won't be insulted. I won't be laid a hand on. I don't do these things to other people, and I require the same of others"...John Wayne in "The Shootist"
A Deplorable!