Flat Tire - Recurrence

jkaiser: How much air should be in the tube when I'm checking for leaks under water? I didn't think about not having enough air in it. I did put the valve under water, but maybe we didn't have enough air in it or something.<br><br>
I did check the inside of the tire (I even turned it inside out) by running my fingers all around it, and a friend did it too, just to be sure. My bike is pretty new (got it in September), but I checked the rim tape anyway, and it was smooth.<br><br>
That's why I am so stumped.<br><br>
I think I'll replace the tube and see what happens. I'll check the tire again for sharp objects, too.<br><br>
Thank you all for your help!!!

LOL!<br>
No, I didn't use my CO2 to reinflate... I actually just called my dh to come get me when it went flat the first time... so that I could take it home and work on it in the comfort of my house.<br><br>
I may not have inflated it enough to check for leaks with the water... I'll bet there's something wrong with the valve. The second time it went flat, I could hear it hissing as I walked by, so I think it must be the valve - it was loud.<br><br>
Thanks, LLR!!

Thanks guys. I'll look into those.<br>
For the record, I do know how to change a tire now... <img alt="smile.gif" src="http://files.kickrunners.com/smilies/smile.gif">

I no idea this thread would turn into such a deep conversation.<br><br>
Anyway, put a new tube in and we'll see what happens.