Quote Originally Posted by CarlD View Post
But why bother? EVEN if it works, you need a new N2 cartridge every season--that's about $100. Does it SAVE you $100 a season? They claim it cuts chlorine usage in half--if it does then you have to be using a LOT of chlorine For me $100, EASILY buys the whole season's bleach.
Don't forget what you're going to pay for metals sequestrant and ascorbic acid once the copper stains the pool.....

Janet