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So I inflated my Downmat…by mouth

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PostedDec 10, 2014 at 2:26 pm

Did a quick overnighter last night, and forgot the Schnozzle for inflating my DM UL7, as it was stored with some "extra" accessories that I didn't need or bring along.
I had a flat spot on soft ground, but the debate over whether to try just sleeping on top of the uninflated pad didn't last long, since the only reason I had it with me to begin with was that it was going to be in the 20s. So I blew it up…

This afternoon I read on Exped's site:
"Tips and Tricks
– To remove humidity or water that may have reached the insulating foam: open both valves and force cool to warm air through the inflation valve using a hair dryer. The circulating air will force humidity out through the deflation valve and dry the insulating foam."

I don't own a hair dryer, so have forced a few dozen Schnozzle-fulls of air through it, with hopes of expelling any moisture, but that excerpt says "foam" referring to the Synmats, so I don't know how well it will work. Leaving it inflated, and will go back later and do it some more.

Did find what they said about circulating air within the mat interesting, and discovered that I can almost fully inflate my DM with the deflate valve open before air starts being forced out. Continuing to push air through really brings home just how quickly and with how much pressure the air is getting in there with the Schnozzle, too.

I'm sure it will be fine, but am going back to storing the Schnozzle rolled up in the pad, so hopefully my next "you're an idiot, you know that?" moment when unloading my pack will be over something else…

Jerry Adams BPL Member
PostedDec 10, 2014 at 3:38 pm

if you inflate with snozzle, it will take a while for any dampness to evaporate from down to the air

so let it sit for a while (a few hours?) then deflate and reinflate

repeat a number of times

you could weigh it to see if you can weigh any dampness in the down and see if the weight reduces after afew cycles of inflate/deflate

Kenneth Jacobs BPL Member
PostedDec 10, 2014 at 4:01 pm

If you you have a basement that is dry (read: dehumidified) and cooler than your upstairs…try filling it with the Schnozzel in the basement and then bringing it upstairs for some time to warm up before deflating. Repeat.

Another option could be to go to Walmart and buy a $6 fish tank air pump with $1.50 of air tube and put the air tube into the inflate valve and seal with tape and let that run for a day or two.

HTH

KJ

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