- Joined
- Sep 10, 2013
- Messages
- 2,997
- Reaction score
- 7,957
- Location
- Nc
- What state or country do you live in
- North Carolina
Any of you guys hitting 0 in freshly made RODI water on the lower range Hanna po4 meter? I have the one that you you don't have to do the math with? Instructions state a 0.04 error possibility....

