We had a bit of fun last summer at the beach when I 3D-printed connectors that allowed us to connect two pumps together. We would "duel" the pumps by applying pressure on one and checking the gauges to see if they match. Out of many pumps tested this way, most of them matched exactly, but one known pump that was already suspected of showing a slightly high reading was reading 1 PSI too high.
I made a simple 3D-printable version of the interconnect part and I'm giving it away as a free download. Here's the link:
www.myminifactory.com/object/3d-print-wing-kite-air-pump-gauge-test-interconnect-adapter-448275
You can probably achieve the same by using duct tape to connect two hoses, but using a 3D printed part is "more fun" (at least in my opinion). We tried alternating two pumps on the same wing to do the check, but couldn't get consistent results that way.
The system as a whole is going to be leaky, so there's a bit of a trick to applying constant pressure in the system. It helps to have a larger capacity pump on one end.
I haven't tried this with electric pumps and would be curious to know if it works. If you want to try it out, I have 3D-printable adapters that convert the threaded connectors on E-pumps to regular bayonets and many other adapters (and I have more in the product pipeline, ready to release).
Happy New Year and may all your pump gauges be accurate!
I joined Ozone to Naish using normal connectors and they read the same 8psi. This will be easier, thanks.
