Sorry, I must not have been clear what I was asking ... I wanted to know if we should add chlorine slowly or full shock strength in one shot we went for the one shot and was probably not the right approach ...
Values were:
FC: 0 ppm
TC: 1.1 ppm
Ph 7.9
TA: 309
CYA: 5 ppm
Hardness: 230ppm
Metals: 0
TDS: 500ppm
We added 4 quarts GLB Algaemycin 2000, brought the ph down to 7.2, added 8 lbs of stabilizer through the skimmer then 3 hours later poured in 8 gallons of liquid chlorine. Next morning pool was clear but the color of tea (brown). Now, chlorine (free and total) is higher than my ability to quantify with my test strips. Ph is 7.0. Added 1 quart clarifier and 3 qts metal magnet. Now the pool is green, somewhat cloudy, holding chlorine, but making me want to throw in the towel. Anybody want to weigh in on what's next?