My first flat with the Conti GatorSkins. Last Tuesday I was riding to the Cornell Orchards and hit what probably was a little pebble. This was followed by a clearly audible hissing sound and to both me and a pedestrian standing nearby it was immediately clear what had happened. Pinch flat. Fortunately I always carry a spare tire and so this was not a big deal. I even made it to the orchards and back to a meeting in time.
Unfortunately, three days later I realized that my tire was somewhat flat again. I didn't have time to check it and just put in more air. So this morning I checked again, and yep: it was pretty flat. My immediate suspicion was that the first flat maybe hadn't been a pinch flat after all and that I had missed something in the tube. But the water test showed that this was not the case. Instead, the valve was slowly leaking air. This really sucks, as it was a brand new tube. I'm now down to no spare tube and will ride out to the LBS on Monday and see if they'll replace the tube and/or get new ones.
Odo bike 1: 2601 km