Review on EXact 486639 II Strip Micro PH by Byron Forman

It seems to me that every test method I use gives different results. I spent time chasing evidence but decided the only way out was to find the only system and trust it. I use an idip meter and these strips. I have a pool and spa that doesn't use chlorine and the two readings I need for accuracy are pH and copper. Using this system and trusting the results seems to work and after a few years the results are good water and positive control. This follows the instructions that came with my system. From time to time my pool guy, I don't let them do anything with the chemistry, shows me a test different from mine and I have to admit that the equipment used seems very good and it's professional. But clean water and the absence of problems convince me that I'm on the right track.