Originally Posted by
Paul Moir
My Aire Liquide one does that too. It's got nicer (and maybe smaller diameter) hose which helps though.
Builds up about 30 psi on the low pressure side when switched off with a fresh tank.
The fix is to use a short, small diameter, and as non-ballooning hose as possible. Also you can add an orifice to help limit peak flow. There is a company that sells a gas saver system for TIG and MIG that does just that.
http://www.netwelding.com/How_GSS_Works.htm
In the past I've used braided stainless teflon hose for argon. It works great and was leftover from plumbing a race car.
Long arc, short arc, heliarc and in-the-dark!
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