I have an Aqualogic which is basically the same thing with full automation of my pumps, lights, water features, etc. I use either pool salt or water softener solar salt--goldine states in the manual that the salt should be 99.5% pure and both of these are. I find them at the grocery store, walmart, Home depot, etc. Pretty easy to find. Water softener pellets are ok but they take longer to dissolve. Just make sure they don't have any iron remover or any other junk like that in them--just salt. It will take a little while to adjust your pump run time and percentage on the cell to keep the proper chlorine level in your pool. Just get a good, drop based test kit (such as Ben's) to keep track of things. Once I got my water balanced I just have to add a bit of acid every few weeks to keep the pH in line since salt generators seem to cause a small pH rise as they operate. I have a 6600 gal inground fiberglass pool and 300 gal acrylic spa and I keep my pool at 2ppm free chlorine and the spa at 3 ppm based on my stabilier level of 50 ppm. Hope this helps!