How to test ball PSI without a scale?

Our team doesn’t have a PSI tester that goes below 10, and we are wondering what is the most accurate way to test PSI while we wait for an actual scale to arrive?

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For now, I’m going with a bounce test. A drop from 3 ft is supposed to bounce back to 2ft 1in to 2ft 6in. I’m letting air out until they fit that range. I would guess that’ll be the quick test of the cargo during field reset.

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I can’t imagine you’ll be waiting too long, and given the nominal, variable nature of the pressure, a few days of use with the game piece without checking the pressure shouldn’t be of major consequence.

We don’t have a pressure tester. but the balls seem to be strong and would likely hold up to a little bit of over inflation. We use this Lufkin Diameter Tape Measure and warped it around the seam and inflated it until it was the right diameter.

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I stopped by the sporting goods store and bought this pump/gauge set today. It works just fine. The gauge is a low pressure type, so it was easy for a student to set the pressure in the Cargo at 3.5 PSI.

If you live in another country, you may be able to find something similar, from a different source.

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