Pool Calculator; useful?

[JimK]

In 10,000 gallons of water, a gallon of 6% bleach would add 6ppm of chlorine. So, since you have twice as much water, in your pool, it would add only half that much which would be 3ppm of chlorine.

Thanks. I wasn't clear about parts of the equation, such as the units for the amount of bleach (ounces? gallons?) and the part about concentration (for 6% bleach, would I multiply by 6? or 6%?), but your example clears it up.

[Watermom]

Anna, I never calculate borax and baking soda. I just make a judgement on how much to add and do small increments until the target is reached. There are so many variables that affect pH and TA that it is kinda hard to have an exact formula for them.

[AnnaK]

For pH, I agree, but alkalinity is pretty straight forward.