I've got the SWG and sand filter running now, but I'm having a little trouble wrapping my head around the adjustments I'm making now.
Still running on low CYA (~20-30ppm), but I'm out and will get some today. I can run low CYA around here effectively and also run at 40ppm using average 3ppm per day. I have happily added my 2-4ppm per day of bleach maintaining an overnight 7ppm to not fall below 3ppm the next day. This works fine.
75ppm CYA is going to be a lot for my cloud covered pool. I'm hesitant to go that high.
The SWG also seems to be no better than me adding bleach every day because it's got one run cycle available and it dumps chlorine in. OK... so I'm raising CYA and still only putting chlorine once a day.
To top that off, I'm supposed to run at 2ppm constantly? How does that work if I'm only adding chlorine once a day and then the pool either gets used or the sun shines... ???
I understand the process well, add chlorine... it gets used... replace it. But how can I only run the swg to produce enough to stay at 2ppm if it's getting used up when it's not constantly dribbling chlorine in?
Also, if someone can please explain in very complicated terms... exactly why and how does a SWG create such a huge shift in chlorine and demand/use theory?
If I can understand this, I'll know how to run this once a day system. Intex didn't make it very easy to run the pump and SWG multiple times a day rather than in one huge chunk.