I agree with Janet.

Pool chemistry is cheap and simple--if you follow our rules. All these "magic" pool solutions are no better and no easier. Usually, they follow the Nature2 pattern of adding copper and silver to the water in constant minute amounts, to hopefully control algae and reduce other chemical use.

But even if you believe that Nature2 works (and I don't because they don't publish their ingredients or test results), do the arithmetic. The cheapest N2 cartridge is about 90 bucks, for the smaller pools. You need to replace it at a minimum every season. Regular 5.25% bleach can be found for $1. So that's 90 gallons. If you go through 90 gallons of bleach a summer in a smaller pool, well then you are probably doing something wrong...You should use about half that. (16 weeks of summer in New Jersey, that's 3 gallons a week--about right on average). So your cartridge costs twice what you would pay in bleach, to cut your bleach usage in half--from 45 gallons to, what? 25?....How is THAT saving you money? Pay $90 to save $20?????

Nope, replace "magic" with our methods and you will not spend lots of time or money on your pool, and will have clean, safe water. 2 -5 minutes a day, and 15 minutes once a week (for a full battery of tests), plus a weekly vacuuming--and auto cleaners are always available....I splurged on a Dolphin Dynamic so I don't vacuum either--it does, overnight.