This weekend I got 2 Phosban 150's, one for carbon and one for GFO. I got a Maxijet 900 going into the first one with carbon, then daisy chained the second reactor with GFO. I put 1 valve on the first reactor and closed it just enough so the flow in the second GFO reactor has the top area tumbling according to video tutorials I have seen online. Everything is running great with the reactors!
MY question is; Do I hang them on the outside, or the inside of the sump? IF inside, they would be partially submerged, I am not sure if that is OK?
MY question is; Do I hang them on the outside, or the inside of the sump? IF inside, they would be partially submerged, I am not sure if that is OK?

