I'm of the school of thought that high sump turnover rate is NOT a great thing. I like to have my dirty water go through slower so my skimmer has more chance to skim it clean before its pumped back up.
Besides, faster turnover equals bigger pump equals more electricity used 24/7 (very inefficiently).
A Mag 7 uses 70w, whereas a smaller pump will probable use 50 or less. The 20w extra only gets you 200 gph through the return but will get you 1400 gph + with decent powerhead. Just my opinion.
Anthony
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If you see it, can take care of it, better get it or put it on hold. Otherwise, it'll be gone & you'll regret it!
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