If you don’t hear a hissing noise, put more downward pressure on the tilt nozzle.
If the disc isn’t coming out easily, try making a few more punctures in the disc. If a section of the disc breaks off, puncture the remaining disc with the hammer and flat-head screwdriver and then remove it by hand.
Use a contrasting colour to mark the tank as empty so that it can be clearly seen. For example, use a silver marker on a black tank.
If you use a recycling pick-up service, place your empty helium tank in the recycling bin. Make sure that the lid can close to avoid extra charges.
Check the instruction sheet on your tank to see if it can be reused. If you plan to use helium again in the near future, keep the tank on hand. Most stores will be able to refill your tank if it reusable.
If the tank doesn’t fit in your rubbish bin, take the tank to your local refuse centre. It is important that all the helium is released from the tank before you throw it away, as improper disposal can put the rubbish workers at risk of bodily harm.
