- Joined
- May 4, 2004
- Location
- Madison, WI
When I first got my Hydor L30 II it was very quiet and worked quite well (about 3-4 weeks). About 4 days ago I began to hear a rattle the persistantly got worse. It was too loud to sleep with it on so I decided to take my setup apart and have a look at the pump. At first inspection I really couldn't notice anything was wrong. The blades on the impeller were all still ok and were not angled. They were a little close to the wall of the intake so I moved the "bushing" out just a tad. I put the pump back together and it was still rattling.
On closer inspection I noticed that there was some wiggle between the shaft and the impeller/magnet. When I look closely at the hole in the impeller that the shaft goes through I noticed that it is not round anymore and slightly deformed. Much like a circle that has been rubbed off in one place or 2 different places. A slight shape resembling that of the outline of a number 8 or worse as if another part was worn away. I think this is causes because there is too much "play" or wiggle between the shaft and the impeller and after a while part of the impeller is slightly worn away at the hole. When I spin it by hand around the shaft it definatly rocks back and forth and rattles. This is why you begin ot get a rattle and it persitantly gets worse. I think hydor needs to fix this problem (maybe they have with the L35) as it is the cause of numerous rattle complaints.
Anyone have any thoughts on this?
On closer inspection I noticed that there was some wiggle between the shaft and the impeller/magnet. When I look closely at the hole in the impeller that the shaft goes through I noticed that it is not round anymore and slightly deformed. Much like a circle that has been rubbed off in one place or 2 different places. A slight shape resembling that of the outline of a number 8 or worse as if another part was worn away. I think this is causes because there is too much "play" or wiggle between the shaft and the impeller and after a while part of the impeller is slightly worn away at the hole. When I spin it by hand around the shaft it definatly rocks back and forth and rattles. This is why you begin ot get a rattle and it persitantly gets worse. I think hydor needs to fix this problem (maybe they have with the L35) as it is the cause of numerous rattle complaints.
Anyone have any thoughts on this?