How to select the correct nozzle for the pressure washing task. Pressure washer spray nozzles are conveniently color coded so you can select the straight zero degree which is red or a fan degree nozzle which are angled nozzles. The angled nozzles come in 3 dispersed angle pattern, the 15 degree is yellow, 25 degree is green and the white 40 degree has the widest angle for the high pressure nozzles.
When choosing an angled nozzle consider the concentration of pressure you want on the surface for example;
A 15 degree yellow nozzle packs the most power and would be a good choice for cleaning off bubble gum, oil stains, baked on grease from a BBQ grill or any stubborn stain.
The 25 degree nozzle is the most widely used because it has enough concentrated power for most jobs and covers a slightly wider pattern than the yellow nozzle. Select the 25 degree green for washing painted surfaces, concrete, pool decks, or other standard surfaces that need cleaning.
Wider fan 40 degree white nozzle is a great choice for general washdown jobs, screens, lawnmowers, cars and other surfaces where control of the pressure is more important than powerful blasting.
Chemical injector 65 degree black low pressure nozzles activate the downstream chemical/soap injectors and the wide broadcast pattern covers a lot of terrain fast.