Recently purchased a Taylor K-2006 Test Kit, and can't say enough good things about it. As a newbie, I feel like I have a million questions, but the one thing I don't have to wonder about is the quality and consistency of test results.
Tried testing my make-up water today. TH (30 ppm) and CH (20 ppm) tests behaved as expected. The pH testing was a bit strange. The pH test itself is consistently off-scale low, which on this kit means less than 7.0. i.e., the color is bright yellow. Then when I attempted the base demand test, the solution would become bright pink when I first added the base demand solution -- appearing off-scale high -- but after a minute it would calm back down and the color would be in range. I have not noticed this behavior with the pool water -- solution goes more directly to the in-range color without initially appearing so bright pink.
Is my make-up water base-demand test accurate? Perhaps the make-up water is too far outside the intended 7.0-8.0 range?
Just want to make sure I'm interpreting the test correctly.