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#1 |
Moved On
Join Date: Nov 2006
Location: oregon
Posts: 825
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define closd loop
can someone define a closed loop for me please
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#2 |
Moved On
Join Date: Jan 2002
Location: NW Phoenix
Posts: 16,621
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Remove water from the tank through a pump and put it back in to the tank in a different place or places to create movement. They normally provide no filtration but can provide lots of circulation and when using devices like a SCWD or Oceansmotions provide nice random currents or flows.
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