well, i just used a walmart drop kit and found it rather subjective... (it's my furst test...) the cya was high, but exactly when the black dot at the bottom "completely" dissappeared was somewhere between 100 and 120 i'd guess. the total alk was about 10 drops, so i guess that's 100.

the cl was another subjective test i thought. it really depended on the light source behind it. just holding it against a white (bright) wall it looked much more of an amber than any of the 5 colors. however, against a super bright sky, i'd say it was about (5) ppm.

does it sound like drain time? it seems the cya is quite high...