I pose this question due to an anomaly I am observing with FC consumption and SWCG outputs. Recently we have had sunny dry days without much rain here in So FL. A good time to dial in my SWCG or so I thought.
My salt water pool is balanced TA: 70, CYA 72 - 76, CH 425, Salt 3600. pH a very stead 7.7 . CSI -0.9 - -0.12. The swcg has a tiny bit of scale on it. The water is clear, filters are clean and there is no sign of algae.
Currently I am running the SWCG for 16.5 hrs per day. It produces 0.2666 ppm per hr. at 100%. It is a Jandy Apure 35. Total FC potential production at 16.5hrs * 0.2666 = 4.399
At a 60% setting total daily production is 2.639 ppm
At 40% 1.759 ppm
Two days ago the FC reading was 8.5 at 8 a.m. with the SWCG running at 60% 8.5 + 2.639 = 11.1639 minus the following morning's FC reading of 9.5 = A loss of FC of 1.6639 ppm over 24 hours
Reviewing those numbers, I say to myself I should safely be able to switch the SWCG output to 40% because that will be 1.759 ppm, an overage of 0.1 ppm, right? I switched over to 40% output and here is what happened.
Instead of the expected reading the following morning I found I did not maintain the FC level of 9.5 as expected, but that it had dropped to 8.5 for a total loss of 2.6639 ppm over 24 hours.
Can two minutes less of run time every ten minutes create a disproportionate drop in FC?
Geeks to the rescue, Please!
My salt water pool is balanced TA: 70, CYA 72 - 76, CH 425, Salt 3600. pH a very stead 7.7 . CSI -0.9 - -0.12. The swcg has a tiny bit of scale on it. The water is clear, filters are clean and there is no sign of algae.
Currently I am running the SWCG for 16.5 hrs per day. It produces 0.2666 ppm per hr. at 100%. It is a Jandy Apure 35. Total FC potential production at 16.5hrs * 0.2666 = 4.399
At a 60% setting total daily production is 2.639 ppm
At 40% 1.759 ppm
Two days ago the FC reading was 8.5 at 8 a.m. with the SWCG running at 60% 8.5 + 2.639 = 11.1639 minus the following morning's FC reading of 9.5 = A loss of FC of 1.6639 ppm over 24 hours
Reviewing those numbers, I say to myself I should safely be able to switch the SWCG output to 40% because that will be 1.759 ppm, an overage of 0.1 ppm, right? I switched over to 40% output and here is what happened.
Instead of the expected reading the following morning I found I did not maintain the FC level of 9.5 as expected, but that it had dropped to 8.5 for a total loss of 2.6639 ppm over 24 hours.
Can two minutes less of run time every ten minutes create a disproportionate drop in FC?
Geeks to the rescue, Please!
