Bob, Nicole, & ajm, my experience with my EV-180 has been identical to yours. I finally got mine going after upgrading the mag7 to a mag9.5. The gate valve is wide open and there is no valve between the pump and the skimmer. The only thing I adjust is the air valve, which unfortunately makes it SUPER sensitive. I've had it dialed in perfectly several times (coffee looking skimmate up to the drain in 24 hrs) but I'll see it loafing and can't resist cracking open the air a hair. Then the next time I check it it's overflowing. So I finally ordered a (brass) valve with a finer adjustment as reccommended by Fred_J a few months ago: http://www.drsfostersmith.com/Produc...&N=2004+113403. Depending on how this works I might try cutting back the water a bit too.
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Six months in the lab can save ten minutes in the library.
Current Tank Info: 72gal display, 20gal sump, 12gal fuge, 5" DSB, mixed and nearly fishless reef
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