Bleed before you fill your lighterYou should bleed your lighter each time you fill it. This releases the remaining air pressure from the last fill, allowing you to pump more fuel in with each fill. Bleeding and filling:1-  To release the tank pressure, press on the inlet valve with a small screwdriver or a multitool. Hold the lighter with the fill valve pointing up and repeat until all fuel/gas pressure is released. 2- Always fill your lighter in a well ventilated area away from any heat source, sparks or flame. 3- To fill, hold the lighter upside down and insert butane can tip directly on the fuel valve. Press down firmly for about 5 seconds. 4- Before igniting the lighter, wait 3-4 minutes for excess butane to evaporate and for butane inside of the lighter to reach room temperature. 5- Set flame level to desired height by turning flame adjustment wheel. 6- Keep in mind that using inexpensive low-quality butane will damage your lighter.