I prepare trimix in a 15L or 20L tank and then use a booster to refill my 3L tank. I was wondering if there is some issues with storing trimix for few months. If the tank is never moved over time could we get some kind of gas separation du to the difference in weight.(Helium find itself at the top close the valve since it is lighter) Should I give it a good shake, roll before using it to refill.
Would appreciate your views on the subject.