How to Add a Pressure Gauge to a Pressure Washer in 5 Minutes
Take the pressure off of tough jobs
Adding a pressure gauge to your pressure washer gives you better control and accuracy, which is especially important when cleaning sensitive surfaces, such as old mortar and vehicles. You can screw on an in-line pressure gauge in a matter of minutes with a quick connect fitting. Learn how to add a pressure gauge to a pressure washer in five easy steps.
Why Add a Pressure Gauge to a Pressure Washer?
A pressure gauge for a pressure washer indicates the force of the water coming out of the nozzle, displayed in pounds per square inch (PSI). An in-line pressure gauge provides an accurate read of the water pressure, helping you prevent damage to sensitive surfaces.
For example, even if a pressure washer states that it goes up to 2,500 PSI, the actual water pressure depends on the nozzle and other conditions. A pressure gauge gives you the information you need for accuracy and control.
Cost to Add a Pressure Gauge to a Pressure Washer
A pressure gauge for a pressure washer costs $20 to $40, depending on the model. You can find them online and at most home improvement stores.
How to Prep for Adding a Pressure Gauge to a Pressure Washer
Choose a pressure gauge that can measure a PSI at least 10% higher than the maximum pressure of your pressure washer. If your pressure washer goes to 3,000 PSI, look for a gauge that goes up to 3,300 PSI or more. If you currently have a pressure gauge that’s rusted or needs replacement, you can remove it by unscrewing it or removing the rust from the bolt.
Call a local pressure washing company if you need advice about your specific machine or if you need help with your project.
How to Add a Pressure Gauge to a Pressure Washer
You can easily add an in-line pressure gauge to your pressure washer in minutes with a few simple steps.
1. Thread the Gauge Into a Quick Connect Fitting
In-line pressure gauges come with a 1/4-inch bottom mount. Thread the gauge onto a 3/8-inch quick connect fitting, the standard size connection for most pressure washers. With the quick connect fitting, you can easily remove the gauge or reinstall it in the future.
2. Disconnect the Hose From the Pressure Washer
Unscrew the hose from the pressure washer hose inlet. Set the hose aside while you add the gauge.
3. Insert the Connect Fitting Into the Pressure Washer
Screw the 3/8-inch quick connect fitting into the pressure washer at the hose inlet. Turn the fitting clockwise until it is tight and secure.
4. Screw on the Hose
Add your hose to the opposite end of the quick connect fitting. Turn the hose fitting clockwise until it is tight.
5. Test the Pressure Gauge
Turn on your pressure washer and test the gauge to see if it works. You should be able to read the pressure gauge and determine the effective pressure in PSIs.
Tips for Taking Care of Your Pressure Washer
Extend the life span of your pressure washer and keep it in good working order by following a few expert maintenance tips. While it can be tempting to make the common pressure washer mistake of shoving it away in storage after you’ve finished a job, a few minutes of care goes a long way.
Rinse the water lines for a few minutes with non-soapy water if you use detergent in your pressure washer. A buildup of soap residue can clog the line.
Winterize your pressure washer when you’re done using it for the season, including emptying the tank and water lines to prevent freezing.
Store your pressure washer in a dry, covered place.
Remove any debris or clogs from the nozzle with needle nose pliers.
Clean the water inlet filter once per year.
Maintain oil levels in gas-powered pressure washers.
"If you don't think your pressure washer is strong enough, consider hiring a pro. Professional machines provide stronger pressure without using a smaller tip, allowing them to maintain surfaces without damaging them."
— Dylan Harris, Director of Operations at Window Hero, Charlotte, North Carolina
DIY vs. Hiring a Pro
You can pressure wash most surfaces, from cleaning your driveway to sprucing up your patio. Depending on the condition of the surface, pressure washing can be physically taxing and take time. You can hire a local pressure washing company to handle particularly tough, dirty, or complicated jobs, like pressure washing your house.
The cost of pressure washing ranges from $100 for a small driveway to $1,400 for a two-story house. The cost to rent a pressure washer ranges from $40 to $175 per day, depending on the type of machine and the vendors in your area. On average, it costs $100 to $1,000 to purchase a mid-level pressure washer.
Frequently Asked Questions
A pressure washer with 3,000 PSI is enough for most residential projects, such as cleaning patios, outdoor furniture, exterior siding, and fences. Add an extendable wand to make pressure washing easier and more ergonomic. Choose a nozzle that’s best for your surface, such as a 15-degree nozzle for cleaning siding and a surface cleaner attachment for driveways.
You can get more pressure out of your pressure washer by adjusting the pressure control knob clockwise to increase pressure (+). You can also check your nozzle for debris and clogs and remove anything you find with needle nose pliers. Switch to a nozzle with a lower-degree spray angle or a turbo nozzle to achieve more pressure at the tip. Check for leaks in the hose and connections, and make sure your water supply is offering enough pressure.
