How much CYA is left in the sock? I would think it should all be dissolved by now.
If you are getting anything like the weather we have been having (nearly 2 weeks of over 100 deg) that sun is chewing up FC.
It might be getting close to time for that CYA test.
What was your target CYA; 40? 50?
When I had mine down @ 30 I was dropping over a gallon of 11% bleach every day feeding the sun, without swimmer load.
And I was failing to stay above minimum levels.
Since I raised it to 50 I am adding about 60oz every day, double that with swimmer load. I am also able to stay well above minimum levels.
If you are getting anything like the weather we have been having (nearly 2 weeks of over 100 deg) that sun is chewing up FC.
It might be getting close to time for that CYA test.
What was your target CYA; 40? 50?
When I had mine down @ 30 I was dropping over a gallon of 11% bleach every day feeding the sun, without swimmer load.
And I was failing to stay above minimum levels.
Since I raised it to 50 I am adding about 60oz every day, double that with swimmer load. I am also able to stay well above minimum levels.