Siphon feed sprayer and a pressure bleed always on compressor is still better than brushing - for some things anyways. Also: I didn't realize pressure rollers went back that far, there is one on the back page. I have had a couple of them, both big enough to put a gallon can in. Cleaning out the pressure tank must have been a PITA with this unit: https://archive.org/details/HowToPaint6TimesFaster_508/page/n17/mode/2up