I too have added small amounts of salt to my non SWG in ground fiberglass pool. I plan to add more this year. I skimped a little last year due to the fact that I didn't have a way of testing and had to rely on the pool shop. I only managed to get it up to 1200 or so. I really didn't notice a difference that I could contribute to the salt however, this year I have noticed a little bit of dry skin and a very small amount of the burning eyes. Did a 40% +/-water change before opening (CYA) so I don't know what the salt level is now but I'm guessing it's in the 700 range. I'll probably try to get it up in the 2000 range at the end of the month. OK wallypog6, fes up!
Dave