We opened a few weeks back to crystal clear water with a small clump of likely vacuumable stuff at the bottom center.
Dunno why, but I guess I forgot everything I learned here last season.
I did not test the water. I *ass*umed everything would be 0.
I added ½ lb of shock: 53.5% Trichloro-s-triazinetrione 46.5% cereal filler [48.6% Available Chlorine]
Within hours, the water turned medium green and so cloudy you couldn't see the bottom.
Several [10?] gallons of 8.5% bleach later, the green is completely gone, but the cloudiness remains.
The filter has, for the most part, run 24-7 with constant cartridge changes. There's no green on the cartridges any longer.
Today's numbers:
>34 FC. I stopped when I hit 120 drops as the sample had not turned clear. Didn't know if I should continue.
7.3 pH
>780 TA Again, I stopped @ 78 drops. The sample turned from the green to yellow, but never turned red.
78 CYA
What next?