Do to a combination of factors my pool sat without any chlorine for around 3 weeks. I started my process Thursday night with 0 FC and 0 cya. I got my tF100 test kit (thanks tftestkits.net for shipping so quickly), and started working to get my CYA to 300. I put 1.5 lbs of CYA in a sock and let it sit overnight. The next morning, my CYA was only around 20, so I put another 1.5 lbs in. Within a few hours, it was holding steady at 30. I began my treatment with 6 gallons of chlorine (I mistakenly used the Shock FC for target for the SWG target of 70, instead of 30). In a half an hour, I was reading 1 ppm FC, so I added 3 gal. Next cycle it was around 2 so I added 2 gal. By early evening, I was out of FC and I started using 68% Cal Hypo. I ended up adding 3 lbs of cal hypo last night before going to bed to try to get it to have some chlorine this morning. This morning I measured 1 ppm. I knew I had to run to the store to buy more so I spiked it with my last 5 lbs of cal hypo. That got me to 15 ppm fc. A half hour later it was 12, another half hour later it was 10, so I added a gallon. Now I pretty much read 10 ppm every hour and I add a gallon. This is what the pool looks like now.
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At this point I have added 15 gallons of 10% chlorine + 8 lbs of 68% cal hypo. I can hold 10 ppm FC by adding 1 gallon of 10% every hour. Late yesterday and earlier today I saw large amounts of film on the surface, which I assume is dead algae. Now I see only a very fine film. I know this is a process and I understand the process correctly, keeping the FC high will clean up the algae. Does this look like what you would expect given the process and where I am in that process?
View attachment 79991
At this point I have added 15 gallons of 10% chlorine + 8 lbs of 68% cal hypo. I can hold 10 ppm FC by adding 1 gallon of 10% every hour. Late yesterday and earlier today I saw large amounts of film on the surface, which I assume is dead algae. Now I see only a very fine film. I know this is a process and I understand the process correctly, keeping the FC high will clean up the algae. Does this look like what you would expect given the process and where I am in that process?