I wish I read your thread earlier but I would put 2 big jugs of bleach (1.4x gallon each) which should raise my cl near 20ppm and in the morning I would have 0. I was adding 4 jugs a day. 2 in the morning and 2 at night only to see #'s of 0 and no improvement in the water.

My pucks are tri-chlor and I added 1 in a floater and with the 2 jugs this morning and now my cl is staying in there. Last time I checked it was at 10ppm , so I added only 1 jug this evening. When I checked the pool around 7PM I could see the bottom of the pool but it was still pretty cloudy. I haven't been able to see the bottom since Wed last week when my problems started.

I will get the puck out in the AM. My theory is algae eat cya and pucks put cya in there so hopefully it will negate each other. I hope I didn't raise the cya level. I haven't checked anything else other than CL since Wed last week. I will run a full test tommorrow and post results.

Stephen
Still a rookie and learning