You want refrigeration tubing, not water supply tubing.
That solenoid cut off needs power. Not a lot but it is voltage sensitive
and is a continuous draw. Be sure to provide a shut off switch especially
if you do not have an auxiliary battery. It is also a nuisance as anything
perceived as a flammable vapor will trip. Too much perfume or hair spray
will trigger it.

Since almost all leaks occur at connection points, you are best to also
keep the tee outside. If using a hose it has to designed and listed for
indoor propane use. Also, all tubing fittings need to be flare, not
compression.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
pickle vanagon
Sent: Friday, August 29, 2008 2:58 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Replacing copper propane lines

I'm going to replace the service valve on my tank, and want to replace the
propane copper lines while I'm there  (currently they're bent to allow for
the larger new-style regulator).

A couple of questions:
Is the flexible copper tubing they sell at the hardware store the right
stuff?  The lines on my van are much stiffer than this.  Is that just
because of age?

Is there an alternative to the rigid copper tubing?  Some kind of
high-pressure rated flexible tubing?

What I would most like to do, is run just one connection from the tank up
into the van, and then split the connection at that point, to eliminate
the
length required by the T-adapter.  This because, apart from my longer
regulator, I also have a solenoid shutoff valve between the regulator and
the t-adapter which is connected to a detector in the cabin and shuts off
the propane supply in case of a leak.  As a result, the stock t-adapter
protrudes from the skid plate as I currently have it.

Thanks very much for any help,
Wes