You will still need to use dichlor as a sanitizer. Go here and read what they say. http://www.ecoonepool.com/spacare.html
I have use it and liked it but it is so much like Spa Perfect that my dealer does have I went back to it. I use Vermonters' Method. I have ozone and N2 as well
then I add 3oz of Spa Perfect every week after the dichlor shock goes back down to 1 or 2. Works for me.