I need a reseal what's a float valve?

-----Original Message-----
From: Damon Lowe <dlowe93@COMCAST.NET>
Sent: Wednesday, July 02, 2008 11:00 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Driving without fuel expansion tanks hooked up?

My wife suddenly decided we need to take the westy to see fireworks this
weekend, which would normally be super cool.  However I currently have my
fuel expansion tanks out while waiting on some "float" valves that broke
while doing a tank reseal.  Will I damage anything if I put a small amount
of gas in and drive it with the lines to the charcoal canister unhooked?