clean mold off patio?
When I first moved here a couple of years ago, the courtyard was just black with mold/mildew. I tried all the kinder things I could think of, but eventually was forced back to using outdoor bleach and feeling guilty. The plus side is that the paving stayed nice and clean from the residue.
But a couple of months ago the HOA had the buildings pressure cleaned and that pushed out all the remaining bleach residue, so now everything looks nearly as awful as it did when I moved in.
Anyone have any useful formulas for a more eco-friendly scrub?