I Have a gravity nurture paint sprayer what is the minimum nouns compressor HP and reservoir size that I call for to operate ...


Answers:    It depends on how much time you will actually be spraying non-stop. A larger reservoir is desirable. I could not paint much with a two gallon container I have on my utility compressor. Anything smaller number than 5 gallon would probably not do the job. You also stipulation to find how much pressure and volume you will be using with your gun.
Sensible give a good answer. What matter is volume requirements (cfm, aka scfm). Psi is probably not an issue, even most small compressors can run at least 90psi. Size (gallons) determines how frequently the motor will inevitability to run to replace the depleted air. I enjoy a two gallon Rol-Air compressor that can outperform most 5 gallon models, and some ten gallons.