Allentown N-type Gunite Pump- Help

upstate81

I recently purchased an Allentown N-type gunite pump. I have read directions on using the machine and have an understanding of the functions. I am hoping that some of the gunite installers on the site might have some knowledge about using the older style pumps. I have a 750 CFM compressor to power the unit and am planning on doing some practice shoots soon. I have experience in inground pool kits, and detailed excavation. Site will not let me post a link to the allentown web site, so if you want to see a picture of the gunite pump search allentownshotcrete N-type.Thanks for any info.