Quote Originally Posted by JohnT
It's the algae that is consuming the chlorine. When you want to test high chlorine with a kit not designed for it, just add 3 parts distilled water to one part pool water, mix and test. Multiply your result by four.

THAT'S right!! Thank you so much. I couldn't remember exactly what the details were. I only have well water, will that work? Don't really have to worry about it at the moment because the cl isn't registering at all yet. But thank you for posting the instructions!!