I'm in Arizona and manage a 55+ mobile home park.I just had my pool acid washed but it still has some discoloration and stains from mineral deposits. I saw this as we started the refill process. The plaster is in pretty good condition otherwise. It's never been painted but I'm thinking about painting it. I have researched and found some different paint products that I am considering. Ultra-Guard and Rustoleum acrylic or epoxy are my two top choices for now but I would greatly appreciate any advice from anyone who has used or has knowledge of these or other paints. I've seen a few reviews about both products, both good and bad.The pool is drained now and time is of the essence as I will probably start the paint process today or tomorrow (October 15-16). The prep work is already done as far as acid wash and clean-up. Thanks.