Was checking this unit out at Woodcraft yesterday. Thanks for your post on its review! So, your use of the Zin 123 water base primer leads me to believe that your finish coat was also H2O based? Have you ran any oil based products through the system yet?
Did it have a tip in the gun already or was the one in the package the only one? Have you sprayed poly out of that system yet? If so what size tip did you use?
I've only sprayed what you see. It comes with the gun. It comes with a 1.5mm tip that's says it for thinner things like stain and poly but had s 2mm for paint and primer.