Have it sprayed! I would go with ARMA COATINGS. They have a web site, and I can't remember it. Try a search engine and type ARMA COATINGS. They will find a shop in your area. This in my opinion is the best on the market. I know because I deliver bleach for a pool company, and I was looking for something that would hold up to a corrosive. This stuff outdone RYNO, and one other that I can't remember the name to. This will cost the same as any other, ARMA is just more durable. I hope this helps!