Pressure Washing: Does It Waste Too Much Water?
Pressure washing is a quick and powerful way to clean outdoor spaces like driveways, patios, and house siding. But many people worry it uses too much water. Is pressure washing wasteful? Or can it actually save water when used correctly?
In this post, we’ll answer those questions and show you how to clean smart and protect the environment.
What Is Pressure Washing?
Pressure washing uses a high-powered stream of water to blast away:
- Dirt and grime
- Mold and algae
- Oil stains and grease
- Mildew and mud
It’s commonly used on:
- Driveways and sidewalks
- House siding and fences
- Decks and patios
- Garage doors, steps, and outdoor furniture
Because it works quickly and uses pressure instead of heavy scrubbing or chemicals, it’s become a go-to for outdoor cleanup.
How Much Water Does Pressure Washing Use?
Here’s where things get interesting.
Most home pressure washers use 2 to 5 gallons of water per minute (GPM). On the other hand, a standard garden hose can easily push out 10–15 gallons per minute—sometimes more if it’s on full blast.
Example:
- Pressure washing for 15 minutes: 30 to 75 gallons
- Garden hose for 45 minutes of scrubbing: 450+ gallons
That means you could be using 6–10 times more water just trying to scrub something clean with a hose. So even though the water looks powerful, pressure washing is often the more efficient option.
Is Pressure Washing Really Wasteful?
Not when it's done right.
The real waste comes from poor habits and bad technique, like:
- Leaving the washer running when not spraying
- Cleaning areas that don’t need it
- Using the wrong nozzle or setting
- Washing during a heavy rain (yes, people do this!)
When used properly, pressure washing saves water, saves time, and gets better results than a hose or bucket ever could.
How to Save Water When Pressure Washing
Choose the Right Pressure Washer
Look for models with a
low GPM rating. A 2 GPM machine can still clean like a champ when paired with the right PSI (pounds per square inch).
Use the Best Nozzle
Different nozzles control how water sprayed. A wide-angle tip covers more space and can finish the job faster.
Only Clean What’s Dirty
Don’t spray the entire patio “just because.” Focus only on areas that actually need it.
Turn Off the Machine During Breaks
Every minute counts. If you're moving chairs or shifting tools, shut off the washer until you’re ready again.
Go Green with Soap
Use biodegradable, eco-friendly cleaners. They break down naturally and help protect your yard and local streams.
What About Runoff?
Water that runs off during pressure washing can carry things like:
- Oil
- Soap
- Dirt and debris
- Paint flakes
If that water gets into storm drains, it can cause pollution.
Here's How to Reduce Harm:
- Block gutters and direct water to grassy or gravel areas
- Avoid toxic cleaners
- Use vacuum recovery systems if you're cleaning large areas often
- Check local rules—many cities have laws about runoff and water usage
When Is Pressure Washing the Best Choice?
Pressure washing is a smart option when you need to:
- Clean large or heavily stained surfaces fast
- Remove algae, moss, or mold
- Prepare surfaces for painting or sealing
- Improve safety by removing slippery grime
It’s a time-saver, and it helps
protect your outdoor surfaces from damage.
Other Cleaning Options to Consider
Depending on your needs, you could try:
- Soft washing: Uses lower pressure and more cleaning solution. Great for roofs and siding.
- Manual cleaning: Involves scrubbing by hand. It’s better for small areas but usually uses more water.
- Steam cleaning: Uses heated water. Effective for some jobs and may use less water overall.
When Pressure Washing Makes the Most Sense
If you’ve got a big, dirty area and want it cleaned fast, pressure washing is a great option. It saves time, water, and effort.
You’ll get the best results with:
- Stained driveways
- Slippery walkways
- Moldy patios
- Prep work before sealing or painting
Just make sure to use it the right way, and your property (and the planet) will thank you.
Frequently Asked Questions
Does pressure washing use more water than a garden hose?
No, pressure washers typically use less water than a regular hose. They clean faster too, which helps save even more.
Can I pressure wash and still be eco-friendly?
Yes, use safe cleaners and avoid letting water run into storm drains. Many pros use equipment to collect or filter runoff.
How do I know if my pressure washer is water-efficient?
Check the GPM rating. Lower GPM means the machine uses less water per minute.
Should I hire a professional or do it myself?
Professionals know how to clean quickly, safely, and without wasting water. They also follow local rules and use better tools.
Can I use rainwater in a pressure washer?
Yes, if you have a rain barrel or tank, you can connect it to your washer. It's a great way to reuse water.
Are there rules about pressure washing in my city?
Some cities have rules about where and when you can pressure wash. Always check your local council’s guidelines before starting a big job.
Conclusion
Pressure washing doesn’t have to waste water. With the right tools, techniques, and eco-friendly choices, it can be a smart, efficient way to clean your outdoor spaces.
Want a cleaner yard without the mess or waste?
Outdoor Transformations offers professional pressure washing that’s safe for your home and smart for the planet.
Contact Us today to schedule your service.
