- Joined
- Dec 10, 2016
- Messages
- 313
- Reaction score
- 182
- Location
- Spring Hill, TN
- What state or country do you live in
- Tennessee
I currently have the Hanna low range phosphate checker. Thinking about going with the ulr checker, do to the fact that I’m only running 5tbs of gfo in my reactor and still getting 0 reading. What are you guys option on the two, and do you think it’s worth spending another $50 on another checker?



