Has anyone heard of CL Free? I have a buddy who has ozone and paid about 4,000.00 for the unit. But I hear there's a system out that makes pool water clean and drinkable. Has anyone heard of it? I read it uses co2. I would like feedback, thinking of switching from salt water to fresh water. Does this mean I could plant flowers in my pool? Just kidding.... I also read that you would have to run the equipment a lot more.