I was following the directions that I was given initially. This morning's stated pH should have been > 8.2. ( I've must be breathing too much bleach) I'm using a Wal-mart testing kit. I used the 'shot glass' method to arrive at the numbers this AM i.e. 1 shot pool water to 2 shots distilled. The dilution this AM read:
free cl 3 x3=9
total cl 5x3=15
combined 2x3=6 or 15-9=6
pH >8.2

I multiplied all numbers by three (except pH) since I used the shot glass method to arrive at the numbers above. As stated the pH I posted this AM was an error. Are my other numbers being miscalculated as well?

My numbers this PM using the s. glass method are:

free cl 4.5
total cl 9
combined cl 4.5
pH 7.6

I do not have any reagent to measure cya, but it was 0 the first day I took the readings in my initial post of this thread. Please set me straight. Are my numbers correct? Should I add 3 lbs cya? Thanks for your help.