So I'm taking Gary's (and other's on in this thread) advice and am actively looking for a Mag 7 to run my Reef Devil Deluxe with. I have a few 9.5's available but I believe they're too much flow for this skimmer.
I'm not getting anywhere near the constant production that I used to with this skimmer...and like I mentioned it skims well for a week or so then sorta poops out - will continue to foam without any real production other than mud on the walls.
I'm not wholly convinced it's my Rio 2500+ as the output is very similar to the Mag 7, but I did find a chart showing the Mag has a greater PSI than the Rio (5.7 vs. 4.1) and these skimmers do need a pressure rated pump.
I have been thinking the problem is with the bio balls, like others here, and when I contacted Gary he wanted $3.95 for 12 mini bio balls and $9.95 shipping (?!?!)...I would think 12 mini's would fit in a bubble pack for a dollar or so.
Regarding the old production, in my other set up I never adjusted the skimmer and it would routinely pull a quart or so of skimmate weekly. The main difference was that the bio balls were in the tower without any fishing line connecting them together. As the skimmer was in a Rubbermaid stock tank sump, it was easy to get to if need be...in my new set up it's hard plumbed under the stand so there wouldn't be an easy way to get the bio balls out if I needed to.
I've included a pic below of the initial set up, since then I've used dfferent bio balls and connected them loosely directly through the center...in the pic below you can see that I tied to the edge. I'm thinking the bil balls aren't allowed to sit or move freely in the tower.
Any ideas on how I should connect them together?
-Eric