You are ready to head out on the trail. The canister to your gas stove is in your hand. Is the canister full, 1/2 full or empty?
This is a great article by Hikin_Jim.
I've often wondered how much was left in the canister.
It’s day five of my seven day trip. I still have a couple of days of cooking left to do. If I run out of gas, I’ll be eating uncooked freeze dried meals (yuck!). Can I afford to make my morning coffee? Just how much stinkin’ gas do I have left!?
Ever been there? Herein follows a simple, field practical way to estimate how much gas you have left in your canister:
Before you go out, take a full canister and an empty canister, both the same size and brand. Put the full canister in a container of water. Mark where the water line is.
Notice how the “P” in “Power” is just about fully submerged.
To read the rest of the article go here.