- Mar 12, 2019
- Reaction score
You should also invest in the Hanna Phosphorus ULR. It is more accurate with low phos readings. One day I got a 0.00 reading on the Hanna phosphate tester and performed another test on the ULR tester and got 19 which is 0.58. Glad I have both testers, prevented me from adding phos..
typo there I think...0.058
Hanna has said both should have the same accuracy, the phosphorus is something like 0.015 and the ulr phosphate 774 is listed as 0.02 but Hanna explained the difference on the units being used on paper rather than one being more accurate than the other.