Richard,

I wonder if you can calculate the following for me:

1. the lbs of borax decahydrate to neutralize the ultimate (not initial) acidity in 1lb of trichlor, in water holding a pH of 7.4

2. the lbs of soda ash to neutralize the ultimate (not initial) acidity in 1lb of trichlor, in water holding a pH of 7.4

3. the lbs of borax decahydrate to neutralize the ultimate (not initial) acidity in 1lb of dichlor dihydrate in water holding a pH of 7.4

4. the lbs of soda ash to neutralize the ultimate (not initial) acidity in 1lb of dichlor dihydrate in water holding a pH of 7.4

5. the effective CYA percentage of dichlor dihydrate (I have approximately 55% chlorine; 50% CYA)

6. the effective CYA percentage of trichlor (I have approximately 90% chlorine; 55% CYA)

Probably, I'm using incorrect terminology with respect to the acidity. What I'm look for are doses of borax and soda ash that, if added with the trichlor and dichlor, to a pool at pH 7.4 would cause the pool to RETURN to pH 7.4, after all available chlorine was consumed, and neglecting any loss of carbonate alkalinity.



I have other questions, as well:

7. when your spreadsheet (and presumably the Poolcalculator) calculates borates, are the ppm as boron or as borate, and if borate, which one?

8. do you know if all borate test methods are returning X ppm, where "X" is the same for all test methods?

9. what is "X"; boron, borates, or something else?