We hiked in on Thursday as planned. Had a problem with my stove (have since emailed MSR and haven't heard back yet), but was able to get rice cooked 'al dente' before it stopped working. So we had some food for dinner on Thursday.

Thursday night, my brother got up to pee several times, and took too long to get back into his sleeping bag every time. He spent more time outside the sleeping bag than inside. I was starting to worry about how cold he might be getting (thermometer said 11 degrees). Eventually, he said he didn't think he was going to make it through the night. I agreed... so we hiked out via headlight.

I am a bit disappointed at cutting it short, but my brother is inexperienced and I'm proud of him for giving it an effort and for knowing when to fold.

The stove issue worries me because I'm going out with my other brother in a couple weeks, and I worry about whether it will work.

This is a Dragonfly. The whole selling point to me when I got it was that it could handle multiple fuel types (for the hypothetical future long-distance trip where I would have to stop at gas stations for unleaded). I did try to completely take it apart and clean/inspect everything when I got it home. But of course the jet is totally stuck. I'm thinking I might try to turn it on again (will see how long it stays on) and heat it up to see if the jet will come out when warm. It isn't a big deal because I'm using the same fuel, but I don't want to be in the field with a stuck jet in case I end up having to repair it there.

The problem I was having, though, was with the pump. The fuel canister wasn't staying pressurized. So the first thing I did was take that apart and inspect all of the o-rings. They were fine, so I'm at a loss as to what happened.

Right, I shook this one. MSR says that I should be able to hear a rattle when I shake it, which I can, so that is a good sign that the jet isn't plugged.

I've only ever used white gas... specifically MSR Superfuel. I got the Dragonfly because I hope to someday be able to take an extended trip where I would not be able to find white gas along the way.

I was out this weekend... it was nice here in Iowa (50F) this past weekend. I hadn't heard back from MSR, so I went ahead and tried using my stove and had no pressure issues. To be fair, I had given it a good cleaning (it didn't need much of a cleaning, but maybe every little bit helps). I never did get the jet off, but no need as of yet (still worries me).

Anyway, I wonder if there is something about using the MSR fuel can and pump in cold weather? Maybe it just needed to be cleaned? What is the coldest temp. that anyone has used an MSR fuel can and pump?