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Old 12/29/2007, 06:15 AM   #4
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Join Date: Apr 2007
Posts: 126
I`m using a fan in the sump. It`s directed toward where the flow comes into the sump. It needs cleaning a couple times a month but it works wonders with temp. 4" 120 volt fan wire tied to a piece of 1" pvc across the sump. I put 90`s on the ends so it cant fall in the sump (had that happen). It brings the temp down any where from 3-5 degs. I put live rock in the sump container where the bio balls were. Seems to work well for me.

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