This is a continuation of another topic I started but thought it best to start new one.
I replaced ALL the water in the pool to get rid of high CYA level (200ppm). I tested new water and here are results:
FC = 0
pH = 7.6
TA = 60
CH = 50
CYA = 0
Assuming these are normal results because it's just tap water. But, using the pool calc, the recommendations to get everything balanced I need to:
FC = add 249 ozs of bleach. Ok.
PH = ok...might actually be 7.5, hard to tell
TA = add 188 ounces or 12 lbs of baking soda. 12 lbs?! Really?
CH = add 622 ounces or 39 lbs of calcium carbonate. 39 lbs?! Again, really?
CYA = add 80 ounces of stabilizer to get to 30. Ok.
Some of these sound excessive, particularly the CH one. The test results for this were normal before I emptied pool. Could there be that much difference in new water?
But, I trust you guys, thanks.