
This is a great product, but you won't believe it if you don't understand the inflation mechanism. A needle attached to an air tank compressor is the only way to do it unless you're comfortable wasting the time and effort. In this case the needle does not go through the valve like a normal valve in a sports ball. It is just inserted into the hole. Air leaks out the side of the needle, increasing the pressure in this very small space. It then exits through the side of the valve past the anti-deflation grommet. A hand pump would not be the preferred tool. No 12v compressor pump. You need a lot more extra volume than you need to fill the buoy. I would rate 20-30 times. I have a 13 gallon compressor and it went from 150psi to 100psi and filled the buoy to 8#.

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