If I brush my liner everyday, I get light clouds and the water gets a touch less crystal clear, but returns to normal within the day. The longer I wait the more you can see stuff on the bottom and the more dark mustard yellow the clouds are and the longer it takes to get clear.
My CYA doesn't register on the TF kit. It is a touch cloudy, but I can still see the dot with the tube filled. At an FC of 16 (pretty high for such low CYA), I lose 1-2 PPM of FC per 24hr period with 4hrs sun, 4 hrs part sun and almost 6hrs of indirect sun.
My FC was at 16 because it was over 20 and it comes down slowly.
I just ordered eyeballs for the returns, hoping that redirecting water would help with circulation and help the problem.
Can't test pH with that high of FC, but it is mid 7 when the Cl is lower.
TA has been 60-80 in the last month.
I have a small leak and replenish the water and Cl more often than the CYA.
I have not done an official OFCLT, but I thought my 24hr loss tests were pretty ok.
I have kept my FC in the high 20's with just as low of CYA earlier this summer for a week, but the problem always returns.
According to my neighbors, my pool was abandoned for over 10 years with no cover for a great deal of that time. I have replaced the sand and cleaned the filter since then. That was two years ago and I have repeated achieved crystal clear water with a slow sand filter, meaning that if I keep the FC high until the water is clear, it is at a higher level for longer than a more efficient filter would be. I have earthy colored (light brown/yellow/tan?) stains that have never cleared on the floor in the low end with high FC levels, but I have unintentionally bleached the decorative border just below water level along the sides.
I have very little FC loss in a hot/bright 24hr period, but I will do an overnight test if 1ppm in a day (24hrs) isn't good enough.
This is my first pool and my algae blooms always start on the liner and then the water becomes cloudy. Is that the norm or does the water get cloudy and not the liner in a "normal" pool. I am really thinking that the extended neglect have created a permanent algae colony that will take such an extended period of high FC that my liner won't be able to handle it. I say this because my liner is already very noticeable lighter below the water line and I have kept mustard shock level for over a week with little to no FC loss.
Just keep brushing to keep the liner and water clear and stop complaining? Any thoughts?