because of a change in valve stem design and unreliable bonding of the tube to the valve, I've been reinforcing my tubes before packing them as spares. I use a feather-edge patch from Rema, or Earth, punch a hole dead center and bond it in place. A standard paper hole punch just happens to be the right size for my PV tubes.
The same system, would work for a leak near the valve.
BTW- if you also have valves separating, be aware that the patch idea works as a preventative, but does not work as a repair.
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FB
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Last edited by FBinNY; 01-07-12 at 12:09 PM.