I have a SWG and have had issues maintaining chlorine in my pool all summer. I discovered my pool service was adding chlorine tabs because the chlorine keeps testing at 0, but that still wasn’t keeping the chlorine level up. We had them test the salt cell, which showed it wasn’t working correctly and we replaced it. We keep bumping up the % the salt cell is working and still not helping. We are now using the SWG and chlorine tabs and still less than 1 FC (generally 0-.5). CYA keeps going down and then we bring it back up (or the pool service does). The water looks mostly clear at the moment, but it has been a little cloudy and a bit green at times and there seems to an oily film on top. I’m thinking we need to shock the pool at this point. Here are today’s numbers:
Calcium 600 (I know this is really high - see comment on scale below)
Ph 7.5
FC .5
CYA 60
If I shock the pool, how much chlorine should I have on hand for a 16k gal pool? Also, we have always had issues with scale, particularly when we increase the salt cell %. Our water is softened so that’s not the issue, and we now have a new cell so that’s not it either. What could be causing the scale?
Thanks in advance.
Calcium 600 (I know this is really high - see comment on scale below)
Ph 7.5
FC .5
CYA 60
If I shock the pool, how much chlorine should I have on hand for a 16k gal pool? Also, we have always had issues with scale, particularly when we increase the salt cell %. Our water is softened so that’s not the issue, and we now have a new cell so that’s not it either. What could be causing the scale?
Thanks in advance.