7.2 vs >8.2 Grrrrrrrrrrr

[waterbear]

Well, I spent several years as an analytical chemist, I've done many many titrations for alkalinity and hardness, so I understand titrations pretty well. I'd love to have a definite endpoint, rather than a subjective color comparison, being color blind doesn't help. Guess I'll start tracking down the FAS/DPD kit so I know my real Cl levels. I just spent ~$50 on the Taylor kit which I thought would be the answer to my problems.

And after all this, it still bugs me that I can get 2 very different pH readings from 2 different kits.

You must have the Taylor K-2005 which uses the DPD test with a comparator tube.. The K-2006 has the FAS-DPD titration test for chlorine. Otherwise it is identical to the K-2005 so most of the reagents are the same. Ben's PS234 is a better 'bang for the buck' in terms of number of tests vs. price!

As an alternative you COULD inve$t in a colorimeter to read the results for you. LaMotte and Hach have some good ones if you have a spare thousand lying around! Being a chemist I am sure that you understand the importance of calibration of test equipment, otherwise I would not make that suggestion.