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Old 10-13-2010, 08:12 PM
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Quote:
Originally Posted by ColinD View Post
MY K2 does the exact same thing, I think its the shaft moving up and down in the housing, the comments about the washer have me thinking that may just be the problem as there does seem to be a couple mm's play in the impeller.

Colin
I took a peak and a couple of my smaller Koralias, have a black washer at the base of the impeller magnet. This isn't smooth, but fits on the bottom contours of the impeller magnet itself.

Could this be causing your problem, if it is missing?
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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
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