Quote Originally Posted by cchase009 View Post
BTW, I tried a drop tesk kit and I cannot tell the difference between all the colors. The pool store said to add an additional drop of the red stuff "fenal-something" and that would make the colors more distinct.
Adding another drop -- if you can't read the kit otherwise -- is better than nothing, but not good. The pH colors in the K2006 are more intense than in the K1000 or HTH 6-way. Some cheap OTO kits have very indistinct (diluted) color matches. But, if you are actually color blind, you may need a pH meter. Check here: http://www.poolforum.com/pf2/showthread.php?15322