Mine only did that when the Airgas manager filled mine. He filled it through the discharge unit whereas Jose who normally fills it removes the discarge unit and fills it with the dewar open.
The time the manager did it, he left the vent valve open and I closed it about half way home. Don't remember getting all that much product out of it that time either though :(
Whe the guy removes the discharge unit he fills it all the way to the top, and since there is so little room left for air, it generates very little pressure until I start using it. The less it contains, the more pressure it seems to build ?
Hope you got enough when you went to bench Spliggitybro
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