Reply To: compression loss due to hose on gauge

[frankr]

I’d say your conclusion is correct. Compare your gauge with one you trust.

You say that you have read many posts on the subject. You probably have read one where I testified that in an earlier life I would sit down and test the opening pressures of 100’s of those Schrader-type valves at a time. I can testify that they vary all over the place. So we can assume there are going to be variances between compression gauges even within same models and types. What really matters is what to expect from YOUR gauge. Other than that, as earlier said, it would take a physics graduate to come up with the answer you are seeking.