- Joined
- Jul 7, 2019
- Messages
- 112
- Reaction score
- 17
I purchased the Hanna HR Nitrate checker and my first test came out flashing 75ppm, so outside of what the device can read. The instructions say to dilute the sample and repeat, but it doesn’t say by how much.
Has anyone ever done this in order to get an accurate reading?
Has anyone ever done this in order to get an accurate reading?