I bought a mummy 15* air pad from Kooka Bay, they (he) was a small cottage co. that made custom pads. My maiden 9 day section thru the whites I brought it to discover a leak at the valve. Kooka Bay is long gone now so i'm stuck with a leaky pad. Question now is what products have people used with success to repair leaks around the value? Is shoe Goo good? Because I will probably get only one shot at this repair and I want it to be right. Thanks