rainbody Posted December 28, 2009 Share Posted December 28, 2009 Ive got 2 Koralia #2s on the side of the tank that are now making sounds. I recently hooked them up to a controller and now they make sounds when they turn on. When they click on, I can see the impeller shifting forward and then dropping back. Any ideas on whats going on? Quote Link to comment Share on other sites More sharing options...
Derek Posted December 28, 2009 Share Posted December 28, 2009 Hmm, I think that's normal. I think those powerheads have magnetic motors. You may want to take them out and see if anything is stuck on the impeller or inside the housing. I had to fish a dead damsel out of my UV sterilizer pump because it was being funky. You never know what you'll find in the housing when you crack it open. Quote Link to comment Share on other sites More sharing options...
muddybluewater Posted December 28, 2009 Share Posted December 28, 2009 Put a piece of airline tubing on the shaft in front of the impeller. The noise is from it sliding back when the pump starts up. Quote Link to comment Share on other sites More sharing options...
+dapettit Posted December 28, 2009 Share Posted December 28, 2009 Not really designed for a controller. . . Quote Link to comment Share on other sites More sharing options...
rainbody Posted December 28, 2009 Author Share Posted December 28, 2009 So Im screwing them up by running them on a controller? or is it just not designed for that? Ill be putting that tubing in shortly regardless. Thanks Quote Link to comment Share on other sites More sharing options...
muddybluewater Posted December 28, 2009 Share Posted December 28, 2009 They are designed to run all the time not start and stop. It might shorten the life a little. Quote Link to comment Share on other sites More sharing options...
rainbody Posted December 29, 2009 Author Share Posted December 29, 2009 The airline tubing worked great. It prevent the impeller from dislodging and making the clicking sound but I found it really reduced flow. I just took them off wavemaker and let them run. Thanks for your help everyone. Quote Link to comment Share on other sites More sharing options...
+dapettit Posted December 29, 2009 Share Posted December 29, 2009 Keep an eye on them. When I modded mine they were running backwards. Dave- Quote Link to comment Share on other sites More sharing options...
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