- Joined
- Jul 14, 2019
- Messages
- 185
- Reaction score
- 94
I just ran 3 tests in a row on my Hanna ULR Phosphate and had 3 different results. (Between .09 2nd test and 3rd I decided to put in a new battery just for heck of it btw)
.18ppm
.09ppm
.21ppm
Has anyone else ran a couple to few tests in a row w/ different ranges outside the margin of error like this on 2nd test?
.18ppm
.09ppm
.21ppm
Has anyone else ran a couple to few tests in a row w/ different ranges outside the margin of error like this on 2nd test?