Whose bright idea was it ........

[Beardy]

to put the tare weight of a 6kg calor gas bottle in lbs and ozs on the disc? I'm sure that there's a good reason for it, hopefully someone can enlighten me.

After googling, converting and calculating I have 3.5 kg left. 🤦‍♂️

 

[Mr Plodd]

Yep, totally stupid idea!
I always weigh a new full cylinder on bathroom scales and write that weight in felt tip on the outside, that weigh (geddit?) Working out tge remaining contents at a later date is easy.
And yes before some pedant tells me bathroom scales aren't that accurate I have a decent set of digital ones and they certainly appear accurate enough for this purpose.