Quote Originally Posted by SuffolkRifle View Post
I use a 3l for away, and have a 12l as a 'home' fill I don't bother to top up the 3l from the 12l, both are 300 bar - the 3l usually lasts for about 6 months (2 guns to 220 bar fill), but then, my local dive shop is about 4 miles from home, so no worries of long trips to top it up.
Diveline ?