Five questions to answer before you buy an airless sprayer.

For walls, ceilings and wider surfaces, the 514 or the 515. For woodwork, doors, trim, architraves, gutters and anything narrow, the 312. Need a bit more control for picket fences and cabinetry? The 210.

If you don't want to pull out your biggest sprayer but still want a high quality finish, yes. The QuickShot II has a replaceable handpiece cartridge for less downtime on site, stainless steel check valves for a better finish, an extra filter for less clogging, and QuickFlush to clean out and change colours faster.

Your first professional airless and you want something light and portable that still packs a punch? The Ultra 390. Spraying more and want more control and less pulsation? The Ultra 395, with its smart control system. Daily residential or commercial work and exteriors? The Ultra 450, the gruntiest of the three.

Take the suction tube out of the paint and wipe it down. Prime with the drain tube in the paint tin, then spray the paint left in the hose back into the tin until it runs watery. Flush with water into a waste pail until it runs clean. Brush out the handpiece filter, the manifold filter and the inlet strainer. Finish by priming Pump Armor through: undiluted if you're storing it, diluted if you're spraying again soon. The full guide is on our sprayer care page.