: If you want/need a decent but not terribly expensive spray unit, try : the lower-range Grayco that HD sells (or at least did a couple years : ago--haven't been back to see since it's 2-hr drive to get to one). : Have done the entire barn and house w/ oil primer and latex topcoat w/ : no problems. Wasn't cheap, but not terribly expensive, either. About : $200-250 iirc...
I bought the next one up, which was either $299 or $399. Terrific tool -- painted a whole house interior faster than I would have thought possible, and pretty easy cleanup IF you follow the directions to a T.
-- Andy Barss