On Mon, Nov 25, 2013 at 11:12 AM, Jim Felder <jim.felder@gmail.com> wrote:
> Mine makes a sound when I turn it on after it has been off a while. It does
> not sound like escaping gas, but gas being equalized between to chambers.
>
> More like a "bump" than a "pfft." Pretty technical, I realize.
>

"a man hears what he wants to hear, and disregards the rest" -- Paul Simon

I may have disregarded the "bump".

"No matter how elegant the hypothesis, or how eloquent it's
presentation, if it doesn't agree with the data, it's wrong"  -- R.
Feynmann adapted from the Challenger Hearings.

So I best grapple with some data, after lunch of course.  Listening to
the pffft or bump and sniffing around.

Pensionerd.