I am purchasing a new home that includes a pool and spa combo. I've been spending quite a bit of time searching for information on pool maintenance ways to keep chemicals to a minimum. I have found a few mentions of ultraviolet systems but none of the local pool stores know ANYTHING about them. While I value some information from the places selling the equipment, I can't trust them completely because they obviously have a product to sell and want my money. I'm trying to find someone that uses or has experience with an ultraviolet pool sanitizer system for feedback. The reasons I am interested in UV is that while it doesn't eliminate the need for a sanitizer like chlorine, the ideal range for free chlorine is 0.3-0.5 ppm instead of 1-3 ppm; UV also destroys chlorine resistant "bugs" and chloramines. UV doesn't have any residual which is why a sanitizer is still needed in low doses. I've gained this knowledge from numerous sources but what I don't have is any feedback from users and hoping someone on a forum could shed some light on that.