Billy wrote:

I have suspended them. Many pumps have eyelets that you can screw
them dfown to something with, I hung one on a peice of string.
Silent.

I had good results doing that with the old Whisper pumps years ago, but it
doesn't seem to make any difference with this Penn-Plax. I used to tie a loop in
the power cord and hang it up from that. The Penn-Plax has the eyelet you
describe.

George Patterson
I prefer Heaven for climate but Hell for company.