But First What Is Pressure Washer?
You’ve tried water. You’ve tried soap. You’ve tried scrubbing and scouring. You’ve tried nasty chemicals that don’t do what they say. So what do you do when it won’t come clean? Roll out the pressure washer!
Many people now routinely use these super-powerful hoses (also known as “power washers”) to blast things clean with water jets pressurized at about 100–200 times the pressure of the air around us (that’s 1500–3000 pounds per square inch or psi). They’re brilliant on patios, drives, lawn furniture, barbecue grills, and all kinds of other outside grime. Let’s take a closer look at how they work!
Pressure washing or power washing is the use of high-pressure water spray to remove loose paint, mold, grime, dust, mud, chewing gum and dirt from surfaces and objects such as buildings, vehicles and concrete surfaces. The volume of a mechanical pressure washer is expressed in gallons or liters per minute, often designed into the pump and not variable.
The pressure, expressed in pounds per square inch, pascals, or bar, is designed into the pump but can be varied by adjusting the unloader valve. Machines that produce pressures from 750 to 30,000 psi (5 to 200 MPa) or more are available.
The terms pressure washing and power washing are used interchangeably in many scenarios, and there is some debate as to whether they are actually different processes.
A pressure washing surface cleaner is a tool consisting of two to four high-pressure jets on a rotating bar that swivels when water is flowing. This action creates a uniformed cleaning pattern that can clean flat surfaces at a rapid rate.
Hydro-jet cleaning is a more powerful form of power washing, employed to remove buildup and debris in tanks and lines
Parts Of A Pressure Washer:
A pressure washer is less sophisticated than it sounds. It’s really just a water pump powered by an electric motor. The washer takes in ordinary water from a faucet (that’s a tap to you folks in the UK), the pump accelerates the water to high pressure, and then squirts it from a hose at speed through a trigger gun. You can fit various other attachments to the end of the hose for cleaning different things.
These, then, are the main parts you’ll find inside a pressure washer:
- Water inlet: A hose that connects the pressure washer to the main water supply. There’s usually a filter in the inlet to stop dirt and debris entering the washer and clogging up the works. Little bits of grit are the last thing you want inside your washer—especially since they could come blasting out of the other end at high speed!
- Electric motor or gas engine: Most smaller, pressure washers (such as the very popular ones made by Kärcher) run off the domestic electricity supply, but bigger models are powered by compact gasoline engines. The engines are similar to the ones you’d find in lawnmowers (typically power rated at around 3–4kW or 3.5–5.5HP). Gas engine models are great if you’re working outside in places where an electricity supply is hard to find (or where a long trailing cable would be dangerous or inconvenient). The motor or engine is designed to power the water pump.
- Water pump: This is the heart of a pressure washer. It’s a bit like a hand-operated ground-water pump—only it’s driven at high speed by the electric motor (or gas engine) instead of your hand. When the engine pulls the pump one way, it sucks water in from the faucet; when it pushes the pump the other way, the water squirts out in a high-pressure jet. Pumps are designed to handle a water flow of around 1–2 gallons (4–8 liters) per minute.
- High-pressure hose: This is the tube that runs out from the washer to whatever cleaning attachment you’ve decided to use. An ordinary bit of tubing wouldn’t be able to survive the high-pressure of the water flowing through it. High-pressure hose is reinforced with wire mesh and has two or more layers of high-density plastic. It’s important to use hose that has a higher pressure rating than the pump in your pressure washer but, if your washer came with your own hose, there shouldn’t be anything to worry about. Typically, the safety margin on pressure-washer hoses is about 300 percent, so if your washer is rated at 2000 psi, your hose should be able to withstand pressures of at least 6000 psi.
- Cleaning attachment: Depending on what you’re cleaning, you can switch from a simple trigger gun (essentially just a valve that lets water through only when you squeeze the handle) to a spinning wand spray or a rotating brush to scrub your drive. Powered attachments are driven by the force of the water flowing through them.
Best Pressure Washer That I’ll Recommend Is Best Car Gurus Pressure Washer:
This Pressure Washer Surface Cleaner From Best Car Gurus is a great tool that helps boost the performance of your pressure washer, thus completing your task faster and efficiently.
This surface cleaner provides professional-grade cleaning with its double-spinning nozzle design.
You don’t experience any streaking problems due to its ability to keep nozzles at a fixed height from the surface.
The splash-free skirt keeps you dry while you clean.
You can get the job done up to 4X faster than the usual spray nozzles.
Efficiently clean horizontal surfaces like driveways, garage floors, sidewalks as well as vertical areas like garage doors and home sidings.
Versatile: This surface cleaner works with both Electric and Gas Powered pressure washers giving you wide options for use!