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#1
04-26-2010, 05:38 AM
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Is the pump chattering, basically trying to spin but isn't? If it is a venturi, try blowing in the venturi tube, that should get things spinning.
My hydor, has 3 pumps, as it is a recirc... the 2 recirc pumps sit on their sides and don't always want to start when I turn it off. I blow into the venturi tube and they start right away, every time. Hope that helps.
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 Setup: 180G DT, 105G Refuge (approx. 300lbs LR, 150lbs Aragonite) Hardware: Super Reef Octopus SSS-3000, Tunze ATO, Mag 18 return, 2x MP40W, 2X Koralia 4's Wavemaker Lighting: 5ft Hamilton Belize Sun (2x250W MH, 2X80W T5HO) Type of Aquarium: mixed reef (SPS & LPS) with fish Dosing: Mg, Ca, Alk 
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#2
04-26-2010, 07:03 AM
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When I ran an ASM skimmer, the Sedra pump it ran on, seemed to be prone to the impeller magnet starting to bulge out over time, and it would have trouble starting after a while. Had to replace the impeller altogether. The bulging was very subtle, at first I didn't believe that was the cause, but it was. New impeller, pump had no trouble. Think I only got around 18 months per impeller replacement.
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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