Just took the cover off my pool last night.... The water was clear but there was lots of green at the bottom.
I immediately dumped 4 gallons of 10% chlorine and turned the pump on circulate (but not filter).
Last night about an hour after putting chlorine in my test results:
This morning my FC was at 14. I really expected it to be much lower however the pool water is very cold right now. My water looked worse. It is now cloudy, murky green and I can't even see the bottom instead of clear with only green on the bottom like it was before I started to treat.
This morning, I had to go out and get stabilizer and when I returned my FC was at 10. I added enough Chlorine to get it back to 15.
I turned on the filter and I added enough stabilizer to get my CYA up to 40 but I know that will take time to get to so I am not sure what the best shock level I should use. Recommendations? Should I use what I need as if CYA is at 40?
Also, since adding the stabilizer I am not losing chlorine... I have tested it every hour for the last 5 hours and it is still at 15.
So my water doesn't look better but worse and my FC is not going down at all in full sun since adding stabilizer. Is that normal? I have read all the articles on algae and shocking your pool, etc. They all sound like my FC should be going down dramatically if I am fighting algae.