Kurt, do you know anything about ozonators? I noticed mine isn't working - the UV light isn't on, and it's too coincidental that it would go out and now we get algae for the first time. I'm sure that the chlorine level was the main problem, but that ozonator does help. I don't think pool stores carry the UV lights so I guess I have to send for one from the company.

I think you said it was still safe to swim in a pool with a 25 ppm cl level?