The Planted Tank Forum - View Single Post - DIY canister filter
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post #39 of (permalink) Old 07-24-2009, 05:53 PM
Join Date: May 2009
Location: Lee's Summit, Mo.
Posts: 1
Like the above stated, put the ball valve on the outflow. And putting outflow restriction on a centrifugal pump does no harm to the pump. It will use less wattage accordingly and shouldn't harm the life of the pump.
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