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Old 02/10/2018, 09:59 AM   #15
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Join Date: Apr 2016
Location: Central Nebraska
Posts: 3,093
You can valve down the pressure (output) side of centrifugal pumps.

It doesn't hurt them. It's no different from adding head pressure. It reduces the output, and they actually use a few less watts.


Current Tank Info: 125 in-wall , 40b sump. 6 bulb T5. ASM G2 skimmer. LPS and leathers
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