Safely

Restore Fuel Gas Safely
A common practice amongst Gas Field Operators is to strike the top of the vessel with a hammer or blunt object (note the chips on the scrubber picture). This creates friction that could potentially cause an explosion and fire.
Striking a vessel also jeopardizes it's integrity, weakening it's internal structure and strength.

Striking pressure vessels when the vessel is under pressure is a dangerous practice. "A pressure vessel that fails can become shrapnel that can seriously injure or kill any person nearby!" Read More.
"In a Single Stroke, the PushOff 2000 can free a lodged float valve with no risk of injury to the Operator and without jeopardizing the integrity of oil field equipment."