Originally Posted by
wattsupdoc
http:///forum/post/2749872
You can always do a remote DSB if you wanted to.
I'd shoot for 10X through the sump. But if your tank only has one drilled OF, and it looks like it does, then the mag 7 s fine.
Is that plumbing the drain? If so the hose barb 90 will not work at all. Likewise you need yo increase the diameter of the drain and use no tight bends,45 fittings are fine, but try not to make them back to back. i would go with 1.25 out of the drain, (each drain if it has 2) then if it splits off you can go smaller, but still no tight bends and keep it as large as you can.
Your sump looks like it might be OK, but there are some issues thet you might have, bubble management, backwash, did you calculate for it? I preffer more baffles to control the flow myself.
Not sure what you mean by the drain won't work. I justed had it circulating water with my mag 7 and then a friends mag 12. Neither pump was able to out perform the drain. I was going to replace the hose barb 90,but since the previous guy had been running his tank for several years with it I figured that I'd just replace it if I had issues. Is there something other than just throughput that you were concerned about?
I have two baffles between the skimmer chamber and the return so far that seemed to prevent all of the microbubbles and I figure that once I put the filter media in between that will be extra prevention against bubbles.