My current CYA reading is 50. The minimum FC is 4 and target is 6. I have been dosing the pool with 4 ppm per day, or 60 oz. based on the size of my pool. Every Saturday, I do the complete testing and average out the numbers to determine how much FC I have been losing daily. I have been keeping track of everything, including temperatures so I can understand my pool better.
It changes weekly. I have been burning off between 3.5 and 4 ppm daily. At the end of the week, If the FC levels are too high, I may then lower the dosage one day or skip if I am slightly higher than normal.
Even though the minimum is 4 and we try not to drop below this, does it make any difference if I drop to about 3 in the morning (around 6 a.m.) and then add enough liquid chlorine to bring up to 7, while gradually the FC is consumed and reduced back to around 3 by the next morning. My CC is always "0" to ".5", depending on swimming activity. Or should I increase the minimum so the drop would be around the minimum or between minimum and target. I know that it is safe to swim up to shock (SLAM) level, etc.
I am very religious in my additions and do make changes. Everything else has been perfect. No TA adjustments and only a 1X PH adjustment, outside adding CYA to bring from 30 to 50. The weather has been pretty consistent here in NJ, and I know that once the temperatures get into the 90's, and school is out that I will have to increase my chlorine additions and test at least 2X a week, as I could drop very quickly and have no chlorine or have CC consume all my FC.
Or should I start the day (after dosing the pool) at 10 FC and drop down to 6, or start at 8 and drop down to 4 FC. Any thoughts?