Nature 2?

[waterbear]

This post is very much in favor of the Nature2 cartridge. We have used one for the past 5 seasons. Our pool stays crystal clear and I hardly ever have to shock (every 4-6 weeks). All I have to do is use 2 stingy sticks every 5 days. The main reason for wanting less chemicals is my skin. I have psoriasis and very dry skin. This has helped my skin tremendously. If you start reading about how harmful chlorine is to your skin and how it is absorbed in your body you might decide to take an alternatate route and use less. As long as we have a pool I will gladly spend 100.00 at the beginning of the season. Minimal maintenance and more pool time is wonderful.

Kim

you might have less chlorine but you are subjecting yourself to both copper and silver so you are not really limiting yourself to exposure to chemicals! Both copper and silver can have negative health effects too. However, I work part time in a pool store and we regularly test for copper (LaMotte colorimeter that supposedly will read .01 ppm copper) and have several customers with Nature2 units. The copper test show no copper to about .03 ppm in the water which makes me wonder if the unit is really doing any thing. Biggest problem I have seen with these units is people let their FC levels drop well below the recommended .5 ppm and that means that the water does not have enough residual sanitizer and is not safe! Clear water is not necessisarily safe to swim in. I tested 3 Nature2 systems yesterday that had NO chlorine in their pools at all. IMHO, this is a bigger concern about whether the water is safe to swim in than how much the cartridge costs to replace or if it is effective. It seems (from my limited experience) to give a false sense of security about pool maintenance and very little margin for error.