- Joined
- Jul 6, 2009
- Messages
- 585
- Reaction score
- 461
I pulled the unit and it is fizzing away and dosing and then returned it to the sump. I have had the O2 probe and ORP on the tank for the last two years connected to my apex so I have lots of data and trends 24hrs a day, so far there is zero impact on ORP or O2.
