Hi Stan,

With your new readings, your target FC level is 20, based on your CYA. In my first post I gave you the amounts of chlorine to add to achieve certain levels. That's based STRICTLY on the volume of water--79k liters. So it doesn't change unless the volume changes, regardless.

Look at the Best Guess Table:
http://poolsolutions.com/gd/best-gue...ine-chart.html

While we measure everything in gallons, if you transpose to liters the ratios remain the same: 1 liter of 14% Liquid chlorine/bleach will add 14ppm of FC to 10,000 liters. 1 liter of 6% will add 6ppm to 10,000 liters. Since you have nearly 80,000 liters, you need nearly 8x as much liquid chlorine/bleach to get the same effect.

Once you get your FC to 20, you'll need to keep it there, checking and adjusting chlorine 3x/day to keep it at 20ppm. Meanwhile you need to vacuum and brush your pool daily, and expect it to take several days to a week to clear up. When the FC does NOT drop overnight by more than a little, for 2 nights running, and the water stays clear, you'll know you're done.