Quote Originally Posted by waterbear
Which Taylor kit do you have? The K-2005 and K-2006 use a 44 ml sample for the pH and demand testsand use reagents R-0004, R-0005, and R-0006.

Think anyone else will understand all this (excluding Ben)?
I have the K-2005 which explains the difference. I'm glad I'm not using some sort of inferior Phenol Red. I'll plan to switch to the FAS-DPD test as well since the rough chlorine measurement is a bit frustrating.

Well, whether people understand it or not, the takeaway is the same -- the acid/base demand tests are pretty useless -- and the worst part of that is that they didn't have to be!

Richard