At 07:11 PM 6/26/2015, Eric Caron wrote:
>old original system. Thanks Stuart for the description on list of
>what happens when this fails!   I offered to have them change out
>the tank hardware but the man said it looked good to him come back
>when I need more propane.

The Autostop valve works fine until it breaks.  Only reason to change
it if it's working is that most pump jockeys have never seen one.  In
lieu of the Autostop, if you replace it with a manual valve always
remind the attendant that the tank only holds two and a half gallons
max.  They have to pay attention from the second thy pull the handle,
not a minute later.  Otherwise you may have to bleed off an
inconvenient amount of gas from the overfilled tank.

>         So, I tried to remember the settings on the unit and gave
> it a try.  I then went out and listened to the vent.  I thought I
> heard something so left it alone and returned a hour later.
> Nothing.  so I learned that you can always hear something in that
> vent, maybe the echo of thousands of attempts to light the VW
> refrigerators of the world.

Haha, it's a tuned folded pipe so it has resonant frequencies that
can pick energy out of ambient noise and show it to you.  Most vivid
experience I've had of that was an old fire truck in a children's
museum full of happy clatter.  The sections of hard four-inch suction
hose hung on the outsides just sat there humming a nice clear note
you could hear from a foot or two away..

Yours,
David