Trying to cut a long story short here. I'm taking over maintenance of my pool for the first time and am still learning balances, procedures, and chemistry.
I tested my FAC yesterday for the first time in a few weeks, and found it near zero. To double-check myself, I took a sample to Leslie's and they confirmed the same. The guy said to add Chlor-Brite. I said, well, I have a SWG, should I just add salt? He said, if the SWG isn't prompting you to add salt, then no, add chlorine.
My question is: how do I know whether it's better to:
1) add Chlor-Brite
2) turn up the SWG's production (currently set to 20% and running 6 hours a day)
3) add salt (I think I know the answer -- when the SWG tells me to)
I guess my real question is between 1 and 2. I assumed with a SWG I shouldn't have to add chlorine; that I could add salt and let the SWG convert that to chlorine.