Here are the latest results and ranges for the season. Pool is closed.
FC (In range always) 3-6 , based on CYA
CC (99% of the time) 0
PH 7.5-7.6 (As it rises to around 7.8, I lower back to 7.5-7.6 with about 10 oz. MA weekly). A lot of aeration with 4 octal circulation heads that break water surface.
We all know that liquid chlorine is pretty much PH Neutral. Adding liquid chlorine will raise the PH slightly, but as it gets used up, the PH will drop back down. Given the above conditions, has anyone ever figured out, or is there some type of formula one could use that shows increase time, amount, and decrease time, etc? And, what is the best PH level to target, using the TFPC methodology? Liquid chlorine is added to produce a net effect or increase of 2 ppm daily, and of course if there will be heavy swimmer activity, the amount added is more
How much does PH really rise based on this scenario? How quickly, and in what time frame does it come back to its normal range given no swimmer activity? I understand this may not be a cut and dry type of answer, just like adding numbers and then backing off as well. My testing, each morning is always prior to the addition of liquid chlorine.