I was recently away from my pool for about 6 months and during that time a friend was taking care of the pool. When I returned he said that he kept adding salt but the salt level on the SWG (Hayward aquarite 40k) never came up above the required minimum so he just added granular chlorine instead to bring the FC level up. When I got back I did some more in depth thesting than he had done and found that while the SWG is reading low levels of salt a strip reads that it is above 6k ppm. I also tested the CYA levels and they are well above 100ppm (not sure exactly because the CYA tester only goes to 100ppm). would you expect that the Granular chlorine he was adding had stabilizer in it? is there any way to fix this issue other than water replacement (I have to pay a lot for water where I am)? and how should I bring up the chlorine levels in the meantime so I don't add more stabilizer? The SWG still thinks it has to little salt so it is not generating.
Thanks for the info.