[quote=stma;55491]
FC:20 (Did have a CC number a few days ago, but that is no longer)
PH:8.2 (was 7.0- 10 hours ago) ??
quote]

High FC level gives a false high pH indicator reading.
People use sodium thiosulphate to neutralize the FC but Taylor doesn't recommend it.
Do you have a pH reading of the water before the shocking? If you trust your previous pH reading of 7 I wouldn't worry about pH. The alternative is to check with a glass electrode or a pH meter. Every lab carries one. I'm checking getting one because I don't like comparing colors.

If your CYA is 50, you still need FC =20 to shock, as per chem geek's table and you haven't reached that level yet. I used Walmart's 6% bleach, and so do many others here.


Has your green color changed into blue yet?
Once it does, you know you're on the right track.

Finally, I haven't seen you reporting anything about brushing. You need to keep brushing all the surfaces so that algae sticking to the walls and bottom will be attacked by the chlorine.