The Planted Tank Forum - View Single Post - Building UGJ, need advice
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Old 11-18-2012, 01:02 AM   #14
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Originally Posted by Sploosh View Post

What kind of pumps did you use in your system? Do they "chatter" when backloaded?
I used submersible commercial pumps ranging from 25W to 100W depending on the size of my aquarium (20G -220G). A single 25W for the smaller aquariums.

Yes, the pumps do chatter when the UG gets clogged but hovering the UG solves the problem. The UG takes about a 100 days to get clogged enough to make the pumps chatter.
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