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rah140
10/07/2012, 05:49 AM
I have a mag drive 9.5 submersible pump in my 75 gallon sump and I just noticed today that the pump has a slight hum when its running. Dio all submersible pumps make a little noise?
grcforce327
10/07/2012, 06:07 AM
http://www.youtube.com/watch?v=fSB_39BDbHc