How To Dispose Of Used Helium Tank Ideas. Storing your tank for later use. Turn the top valve to the left to release all the helium before you put it in the bin.

Once your green valve is open, slip your balloons over the black fill nozzle and press down on the nozzle. Release all unused gas before disposal. To dispose of helium tanks, do the.to rent a large helium tank that fills 100 to 500 latex balloons typically costs $35 to $190.turn the top valve to the left to release all the.