So I am gradually declining with vodka dosing and plan to put my Phosbans back online and run GFO and Carbon. However, i have NO room in the stand by the sump. So this forces me to place both units in a closet next to my tank where my ATO is. My ? is which pump will i need to effectively tumble the media as needed. I’m figuring roughly 6ft from sump to reactors and then 6ft back to the sump. I think a MJ1200 will work on the GFO but not sure about the carbon. Any input would be great.
If that 1200 will push the water that far it will work. Because all you need is the water going through the media and not need for it to be tumbling. Unless you think it require the water to flow through faster, then of course you will need a more powerful pump like MAG5?
You could also T off your return pump and run a line to those. As A said gfo is barely suppose to tumble, very lightly. Carbon on the other hand is suppose to be in high flow areas so a good stream going through that would be best.
I already have a hole in the stand and wall to go to the closet, however, running a T from the return isnt a option due to id have to make more holes #@$^ I was looking at the BRS GFO & Carbon reactor, but if GFO is barely supposed to tumble and carbon is supposed to tumble that might make tuning a PITA! Maybe I’ll just stick to running 2 separate Phosbans and just change out to a stronger pump if needed for Carbon.
I used to use the BRS individual reactor’s for this purpose. The GFO(I would suggest the BRS HC here) should be kept just fluidized to keep it from clumping. The GAC (ROX 0.8 here) should not be tumbling at all, in fact I used to reverse the flow on that reactor, and use a couple extra sponges to keep it from doing so. Both should be rinsed thoroughly when first deployed.
I also pack the carbon nice and tight in my reactor when I run it and crank up the flow through there. If I’m right, when carbon tumbles it allows it to start breaking down from being beat together.
[quote=“BigCase, post:6, topic:7684”]
I also pack the carbon nice and tight in my reactor when I run it and crank up the flow through there. If I’m right, when carbon tumbles it allows it to start breaking down from being beat together.[/quote]
Yes, you don’t want it breaking down, and have the fines entering your system, it’s a known cause of HLLE.