Is Nature2 a filter?
No. A filter simply removes particles and debris. Nature2 sanitizes pool water by destroying bacteria which are too small to be caught by a filter. You still need a filter when using Nature2 system.
Do I still need to use chlorine with Nature2?
Yes, you need to use a small amount of residual oxidizer to ensure water sanitizing. With the Nature2 system* you can reduce the chlorine level to just 0.5 ppm. You won't feel, smell or be affected by chlorine at this level.
*The Nature2 system consists of the patented Nature2 technology used in conjunction with a chlorine delivery device or 0.5ppm of an EPA-registered pool product.
How do I know if Nature2 is working?
The best test is improved water quality; you'll notice a big difference. Visual clarity and sparkle shows Nature2 is working properly.
Should chlorine still be used with the Nature 2 "Mineral Sanitizer"?
Yes, you still need chlorine (oxidizer), in reduced quantities, to complete the water treatment. The quantity of chlorine needed will cause no discomfort (bad smells, unpleasant sensations, stinging eyes, etc.)
Which products should be avoided when using, or planning to use, Zodiac Nature 2?
Bromide and its derivatives.
Chlorine-free disinfectants of the PHMB type (or "biguanides"): Baquacil, Revacil, Oxyline.
Other products containing copper.