Cal hypo shock conversions....

[chem geek]

You could probably use BleachCalc to figure this out since I think it has different forms of chlorine in its menus/preferences.

At any rate, one pound of 65% Cal-Hypo adds 7.7 ppm FC to a 10,000 gallon pool and also increases CH by 5.5 ppm. This is equivalent to 1-1/4 gallons (20 cups) of 6% bleach (assumed to be 6.3% available chlorine by volume, not weight).

You can scale the numbers for your situation with different percentages of purity of Cal-Hypo and for the size of your pool.

Ah heck, I'll do it for you...in a 22,000 gallon pool one pound of 65% Cal-Hypo adds 3.5 ppm FC and increases CH by 2.5 ppm. You can scale this down for 53% Cal-Hypo, but should try and get 65% Cal-Hypo if you can, unless it's not as economical.

Richard