How do I know if my cylinder is empty?

All cylinders have a tare weight disk showing the weight of the cylinder, we then fill the bottle to the required amount the cylinder can hold. To check how much gas is remaining we would recommend using scales.

For example the total weight of a 13kg cylinder is 25kg – the bottle weighs 12kg and the gas weighs 13kg.

To check how much gas is remaining, place the bottle on a scale and check the weight. In this example, if the scales show 14kg, the original bottle weight was 12kg, so this would mean there is 2kg of gas left in the cylinder.