I've been using the same sleeping pad for years and years, a Thermarest, Neoair, Allseason. Not only is it comfortable, but it's warm in the winter too. For the last few years it's had a slow leak and I'd have to blow it back up to proper pressure a couple of times per night. Today I was off from work and decided I'd try yet again to find the leak. So I partially filled the bath tub with water and gave the sleeping pad the dunk test while I looked for bubbles. This isn't the first time I've tried this, and like all the other times I didn't find the leak. Out of frustration I e-mailed Thermarest and got back a reply to view the videos they have about the subject. In the video they recommended that if you couldn't find the leak in plain water then wipe the mat down with water with soap mixed in to produce bubbles. Sure enough, that did the trick and I found the leak
Next on the list of things to do was to find a patch kit or order one. I dug around in our drawer of miscellaneous hiking stuff and found not one kit, but 3. On this coming Saturday I'll be making the attempt to make the repair. There's one teeny, tiny hole on the back side, near the foot end of the pad. Wish me luck!
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