First I just want to reiterate how informative this site is. I just installed a new IG pool last year and I am already more expert on water chemistry than others I know who have had pools all their life. I must say my new pool has indeed been TROUBLEFREE!!!
My pool was completed late in the season last year so I waited until this season to put in the salt and start up the SWG. I have also followed the SWG chemistry recommendations from this site. My question is that at these recommended levels the Saturation Index in PoolMath is consistently mid-range negative. Meaning around -.3 to -.4. Is this intended? If so why is balanced (index = 0) not good for a SWG?
Thanks, I'm just concerned about leaving it in negative territory all the time.