Originally Posted by
FREEBIRD1
Wake up this AM and my 700X35 front tire is flat. I figured it had a puncture, so I remove the tube re-inflate it and put it in my washtub of water. I submerged it inflated and I see no bubbles, Never had a tube do this and I always could detect the puncture in the water. What would cause this? Thanks.
possibly debris in the valve.
apply soapy water after inflating the tube some, then leave it alone for ten minutes.
if there is a leak, there will be foam or a larger bubble at the leak site.
dish soap works well.