Well water stain issue solved with a surprising trick
I've been fighting these nasty orange stains on my stucco for like 3 years now after I put in a new drip system. Tried every cleaner at Home Depot, spent maybe $200 on different stuff, nothing worked. Then my buddy who builds pools in Phoenix told me to try oxalic acid - the stuff they use to clean rust off concrete. Mixed up a batch from a powder I got at the hardware store for $12, sprayed it on with a pump sprayer, and let it sit for 15 minutes. The stains just dissolved like magic, no scrubbing at all. Now I'm thinking I should have tested a small spot first because I got a little nervous about the overspray hitting my windows, but it rinsed right off. Has anyone else had luck with this stuff on desert mineral deposits or am I just late to the party?