Vertex IN100 Vibration?

[Bryan]

There was a well known problem with vertex skimemrs and the impeller. It vibrated ever so slightly when worn causing a howling noise from the pump. This was a problem a couple years ago and most users had their impellers replaced. Perhaps yours was still old stock.

[Maverick00]

interesting. Its been noisy off and on all day. If i tilt the skimmer it sometimes helps quiet it down. Weird, ill pull the motor apart on the weekend and take a look at it. Thanks.

[Bryan]

You will need to disassemble the impeller, if you notice the hole where the ceramic shaft glides throuigh is ovaled out, even the slightest that is the problem.