How does pressure washer work?

This is the inlet through which water enters the pressure washer. It is a hose that connects the pressure water to the main water supply. It also has a filter to make sure that dirt and debris don’t enter the pressure washer to affect the smooth functioning of the pressure washer.

Most pressure washer uses a four-cycle engine to drive the pump similar to an automobile engine. They run on gasoline. Before starting the engine, the switch setting should be on ‘On’. After that starter rope is pulled in most models. When the starter rope is pulled it engages the drive cup on the flywheel and rotates the crankshaft. The crankshaft connects to the piston which moves up and down in the cylinder. There are four strokes made by the piston- Intake, compression, power, and exhaust which ignites the engine. The engine then powers the pump.

The engine crankshaft extends out to the bottom or side of the crankcase and connects to the pump. The pump consists of three plungers which operate in a similar manner to a piston. As the plungers move upward, they draw water from the input check valve. And as they move downward, the water is forced through the output check valve.

It is the small pipe through which the water flows with high pressure. They are covered with wire mesh and high-density layers of plastic so that they can survive the high pressure of the water. This hose is then further connected to the trigger gun. Smaller the diameter of the hosepipe, the greater will be the pressure.

Usually it is the trigger gun, but it may vary according to your needs. It can also be a spinning wand spray or a rotating brush to scrub your drive.

Trigger gun makes cleaning a very simple and easy task. When the trigger on the gun is held, the pressurized water exiting the pump flows through the hose and wand to the noddle which creates the high-pressure stream.