I have a 25,000 gallon gunite pool. Based on my first real test results (FC 3.6, CC 0.2, Ph 7.2, CYA 50-60, Calcium 140, TA 80) and advice from the Testing Results forum, I need to raise my Calcium up to the 250 ppm range. I was advised to use a cal-hypo product (without stabilizer) to do that.

Checking locally I found that available as HTH, and I am told that it does not have stabilizer in it. It seems to be sold in 1 pound bags with 57% chlorine, and using the bleach calc I found that to raise my chlorine level 1 ppm I need to use 0.2 liters of bleach.

How do I convert from liters to pounds? I already accounted for the higher concentration of chlorine, so I am now officially confused. Thanks.