I'm a new pool owner with the Nature2 and inline cholrinator, DE filter with a pebbletec finish. I've read the boards about the Nature2 thoughts and simplification methods of what chemicals are really needed. For now I'd like to use what I have while a comfort level is created with the new toy.

My question is Staintrine for keeping the finish from getting stains. Is there an equilvilant chemical or thoughts on the pros/cons.