View Full Version : Closed Loop?
What exactly is meant by the term "closed loop" ?
banditpowdercoat
01-06-2010, 11:47 PM
Meaning water goes directly from tank through pump and back to tank again. Closed loops do not run through a sump, and usually not through an overflow either. They are, like in the instance of my 150g tank, a bulkhead in the bottom of the tank plumbed directly, with shutoff and unions, to a pump's intake, then the pump outlet is fed directly back into the tank
^ Ya, basically an external powerhead. :D
personally its a cleaner way to move water rather then using power heads. JMHO
lots of pictures on OM's site (here (http://www.oceansmotions.com/forum/viewforum.php?f=10&sid=459fa532d1efc99f3884145ef7966dad)) with pictures of tanks with CLs
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