- Jan 4, 2016
- 5,288
- Pool Size
- 44000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
Yeh, I can see the white stuff - called in some veterans to look as well.
First up, please show your numbers like this:
FC 7
CC 0.5
pH 7.4
TA 90
CH 80
CYA 50
CYA could go up, but I think we should give it the full week first. If you put enough in based on pool math, let's assume it's 60 right now. So FC bare minimum is 3 and target is 5.
The 4 PPM drop is a bit alarming - was it super sunny, hot, did you swim a lot? - if not, then do another OCLT tonight. Are there any organics left in the bottom of the pool? In the skimmer baskets? In the pump basket? Have you backwashed all the grunge from the SLAM out of the filter? These sorts of things can add to the FC demand.
The IC40 SWG in 33,000 gallons needs to run around 12 hours at 100% to deliver 2.5 PPM per day, which is a typical season-long average demand in a clean pool.
I hope that's helpful. Your water is certainly looking good, and we'll see what the experts think about re: the white stuff.
First up, please show your numbers like this:
FC 7
CC 0.5
pH 7.4
TA 90
CH 80
CYA 50
CYA could go up, but I think we should give it the full week first. If you put enough in based on pool math, let's assume it's 60 right now. So FC bare minimum is 3 and target is 5.
The 4 PPM drop is a bit alarming - was it super sunny, hot, did you swim a lot? - if not, then do another OCLT tonight. Are there any organics left in the bottom of the pool? In the skimmer baskets? In the pump basket? Have you backwashed all the grunge from the SLAM out of the filter? These sorts of things can add to the FC demand.
The IC40 SWG in 33,000 gallons needs to run around 12 hours at 100% to deliver 2.5 PPM per day, which is a typical season-long average demand in a clean pool.
I hope that's helpful. Your water is certainly looking good, and we'll see what the experts think about re: the white stuff.