Basically, the nozzles are of three types - MEG type, Quick Disconnect type and Black Tip type. MEG generates the highest impact at the exiting tips. Pressure increases when the surface is away, though a good force for effective cleaning could be created with a distance of 4-12 inches. In Quick Disconnect nozzles, the operator can choose from a range of angles, making them versatile. Black Tip nozzles have the largest orifices to resist the water, granting them low pressure tips. By using all these nozzles, the stress to the machine increases. But, the advantages are a lot and hard to overlook.
A pressure washing unit is an incomplete machine unless a nozzle is attached to influence the spray angle. To make the best use of the service nozzles provide, you need to keep changing the nozzles for different jobs. Sometimes, when you're working on a smaller area, choosing a smaller nozzle would make your job faster, easier. Vice versa is the case in larger areas. However, adjustable nozzles fulfill the purpose of cleaning moderate areas. The various sizes of the nozzle provide different streams so it is blatantly important that you get as specific as possible in choosing a nozzle.
It is apparent that a pressure washing machine uses huge pressure to clean a surface. While some surfaces can cope with the pressure, others are too delicate for it. Thus, the pressure blows the face up. For the same reason, you can't use the same nozzle everywhere. A special pressure is requires to get rid of the debris and in a certain way. Hence, there is a need to change the nozzle as and when requisite.
On the other hand, sometimes some areas are messier than others and they require a more direct spray. It could be easier to understand the nozzles and it's working once you've comprehended the amount of pressure the area needs and which nozzle would work the best, before you take a shot at washing it. Remember to start with little pressure and increase it gradually. This would ensure the safety of both you and the surface.
There are special pressure water nozzles to make cleaning painless. There are nozzles that could be mixed with chemicals and ones that are long distance to allow the user to reach distances. Maintaining a nozzle is also when you have accessories like brass cleaning tools to help it from getting clogged. Every nozzle used in pressure cleaning has its pros and cons. Like they say, every coin has two heads - you just need to find the right and most apposite one for your cleaning, depending on the task at hand.