Turn the top valve counter-clockwise. Turn the valve to the left until it can’t go
Push the tilt nozzle down to release the pressure from the tank. This nozzle is the
lever that you push to fill the balloons with helium. You will hear a hissing sound
as the nozzle goes down, this is the pressure being released from the tanks. Hold
the nozzle down until the noise stops, indicating that all the pressure has been released.
Puncture the side of the relief disc. Before attempting to puncture the disc, put
on safety glasses and gloves. Find the relief disc on the back shoulder of the helium
tank. This is often labelled to help you locate it. Place the head of a screwdriver
onto the disc and use a hammer to bang on the top of the screwdriver handle. Continue
hitting the screwdriver until you puncture a hole.
Draw a circle around the hole and mark it as empty. Use a permanent marker to circle
the hole in the tank where the relief disc was. Below the circle write that the tank
Take the tank to the USB scrap metal bin for recycling.