Look at his website next week, pics will be up by end of the week hopefully. And, yes, Rod, there will be pics of Rod's Gizmo up there!
It's simple in fact: a long pvc tube (wider diameter the better). Put a coupler and a slip to thread fitting on one end that will screw into a Mag-Drive or similar pump. At the other end, put some kind of cap like a clean-out cap with a bunch of holes drilled in. Foam on both ends to prevent carbon from spilling out of The Gizmo. Fill 'er up with carbon, screw it onto the Mag, plug it in, and presto!
Rod sells them for barely more than the parts alone cost and he's got a few different sizes too.
