On Fri, 18 Jul 2008 00:30:37 -0400, "MiamiCuse"
wrote:

I have a pool pump outside of the house, sitting on a concrete block which
is on top of a concrete pad. During the day when the pump is on, I can hear
it in the room which is on the other side of the exterior wall.

You should start touching it and find out what part is making the
noise. I'll bet it's the pump on top of the cinder block. Put the
neoprene between the two.