Essentials CO2 Inflation Hopdw.com | 503-234-7257 3625 SE 21st Ave Portland, OR $7202 and 2. Thread CO2 cartridge onto inflation until it punctures. 3. If using a Pres ta Valve, 4. Push nozzle onto valve. open it and tap the valve to release a burst of air and unstuck the valve. 5. Ops control knob slightly to release a small amount of CO2 into tube. Verify CO2 is going into the tube before proceeding to fill tube completely. 6.
