Hi Rich,
I don't know if it be considered a small diaphragm or not. Here's link to it: Wagner 4275 Paint Sprayer (Reconditioned) - Obsolete Items
The inverter I got is an Aims 2500 watt: 2500 Watt Modified Power Inverters
Got to go one step up in order to turn my compressor on.
I'm told problem with trying to run high amp motors off an inverter is they need upto like 3 times the continuous power.
This Wagner sprayer ran off my inverter in a quik test but haven't tested it in actual use for a length of time.
About the breaker flipping..unsure why this one customers kept flipping from the compressor. Was able to get it turning if I let air out of tank and line. Was weird like he had no amps. Have upgraded a few breakers out in the garage to run welder and spa but I hardly want to be messing in a customers box for small jobs.
But hey do you know how to setup a machine to run off house current when it's specs read :
Voltage- 3x230V/60hz
Phase- Single or Three Phase
Amperage- 21.1A