Pressure washers are extremely useful cleaning tools, as anyone who’s tried to wash a muddy deck, car or patio by hand can tell you. Whether gas or battery-powered, pressure washers spray water powerfully in various concentrations from a hand-operated wand. Most come with sets of nozzles, allowing them to deliver everything from a narrow, wood-splintering jet of water to a wide, gentle shower.

Here is how to change pressure washer nozzles and choose the right one.

 7 Types of Pressure Washer Nozzles

When it comes to purchasing a pressure washer nozzle, there are a lot of factors to consider. This includes the type of nozzle and whether you need to purchase one nozzle or a whole set. To get a better idea, try to make a list of all your cleaning requirements. If you’ve misplaced your manual, use the pressure washer specs and this chart to determine which size nozzle you need.

Before learning how to remove and change the pressure washer nozzle (along with some pressure washer maintenance tips), here are the seven types of nozzles:

0-degree nozzle

Usually red with a small circular hole in the center, 0-degree nozzles give the thinnest, highest pressure stream of water of any pressure washer nozzle. Choose this nozzle for cleaning small sections of encrusted dirt from hard surfaces, like concrete. They are also great for cleaning narrow, hard-to-reach areas, like the cracks between patio or driveway slabs.

15-degree nozzle

These yellow nozzles shoot a narrow spray pattern that’s great for washing hard surfaces, like concrete or asphalt. The pattern is wider than a 0-degree nozzle, allowing more surface area to be covered in less time. Be careful, though: The powerful stream can easily damage wood and paint.

25-degree nozzle

These green nozzles spray in a triangle. Though featuring a larger central hole and lower pressure than red and yellow nozzles, these still pack quite a punch and can mar wood if you’re not careful. They’re best for cleaning tough surfaces with lots of area, like stone or brick walls.

40-degree nozzle

These cover plenty of surface area but don’t apply a lot of pressure compared to narrower angled nozzles. They’re great for washing softer surfaces like wooden and composite decks, house siding or even your vehicle. Just be sure not to spray one spot for too long, because even this less powerful spray can damage wood and paint.

65-degree soap nozzle

Thanks to a large central hole, black soap nozzles offer the widest and lowest-pressure spray pattern of all standard nozzles. The low pressure and high flow rate make these perfect for washing and rinsing delicate surfaces like windows and other glass, ceramics and vehicles.

These nozzles are the only ones that work properly with the built-in soap dispensers.

Rotary nozzle

A relatively new arrival to the pressure washer scene, rotary nozzles combine the extremely high pressure and knockout cleaning power of a 0-degree nozzle with the coverage of a 25-degree nozzle. They do this by emitting a thin, 0-degree jet from the end of a black, cylindrical attachment that rapidly rotates during use. This fast, constant rotation causes the stream to cover many times more surface area than a regular 0-degree nozzle could in the same amount of time. I’ve used a rotary nozzle to save time blasting large areas of caked-on dirt from a concrete patio.

The dirt was too stubborn for a lower-pressure nozzle and there was lots of it, so the rotary spray pattern saved tons of time.

Revolving multi-nozzle

Want to save yourself the time and trouble of constantly switching pressure washer nozzles for different jobs? This will also make sure you don’t end up in a situation where the pressure washer nozzle is stuck. Many pressure washer owners go with a single revolving nozzle with every different spray concentration built in. Simply rotate the nozzle to the numbered marking of the spray pattern you want and start cleaning.

How to Safely Remove a Pressure Washer Nozzle?

Step 1: Turn off and depressurize the washer

Before you do anything, remember to locate the washer, turn it off and depressurize the same. This would help you keep things safe and avoid unnecessary breaks or leaks in the process.

Step 2: Locate the quick-connect fitting

Next, look for the quick-connect fitting and make sure you’re all set to remove the nozzle. Keep your touch gentle, swift and maintain safety.

Step 3: Gently pull and remove the nozzle

Finally, gently tug at the pressure washer nozzle and pull it out to successfully remove the nozzle. Now, you’re ready to check for clogs, clean or replace them.

Is Your Pressure Washer Nozzle Stuck?

Tips for loosening a tight nozzle

Start by making sure that you have released all the pressure. Then, gently use a needle to pull it out.

You can also try to soak it in vinegar. This usually makes it easier to loosen the nozzle. Remember to check for wear and tear after you’re done to avoid any leaks.

Using lubricants or tools safely

One of the most important points to remember is that cutting the hose or nozzle is extremely dangerous.

Always make sure that if you’re using lubricants, they are compatible with your nozzle’s material. Make sure you’re following all the safety precautions and have your eyes and hands covered.

How to Change the Nozzle on a Pressure Washer?

Luckily, pressure washer nozzles are easy to change. Avoid these common mistakes made while using them. Wands come with quick-release fittings to receive the stainless steel or brass back end of any nozzle of the correct size. The most common diameter for pressure washers and nozzles is one-quarter inch.

Steps to change a pressure washer nozzle:

  • Shut down your pressure washer if you won’t be spraying anything within the next minute or two. Running too long without spraying can damage your machine.
  • Retract the quick-release fitting on the end of the wand.
  • Pull out the nozzle and place it somewhere safe. Many models come with a built-in nozzle holder.
  • Retract the quick-release fitting again, then slide the nozzle into the fitting. Release the fitting. It should interlock with the nozzle.
  • Tug on the nozzle to make sure it’s secure.

Pro tip: If the quick-release fitting won’t retract, spray inside the cracks with WD-40 and let it sit for a while. Then, try again. If it still won’t budge, try pushing on the edge of the outer ring of the fitting with the flat side of a small slot screwdriver.
This nearly always works for me. While you’re at it, learn how to service a pressure washer muffler and get proficient at changing pressure washer nozzles.

Pressure Washer Nozzle Maintenance and Care Tips

How to clean and inspect your nozzles

Inspect your nozzle for leaks, erosion or wear and tear before cleaning.

Use a soft-bristle brush and soap. Then, wipe your nozzle with a soft cloth.

Preventing future clogs and damage

Is your pressure washer nozzle stuck? Regular maintenance will help you ensure that you can depend on your pressure washer nozzle. Keep your equipment away from the elements to keep it safe. Also, remember to keep it away from any form of moisture and dust.

FAQ

Why is my pressure washer nozzle stuck?

There can be several reasons why the nozzle is stuck and blocked. Some of the most common ones include built-up dirt, rust or debris.
It can also be caused by a damaged locking mechanism or corrosion.

Sources: 

Author
Robert Maxwell
Robert Maxwell is a seasoned carpenter, builder, cabinetmaker, homesteader, stone mason and mechanic. He's been sharing his knowledge through digital and print articles since 2010. Robert lives in a self-built cabin in the woods in Northern Ontario, Canada with his wife and daughter.
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Robert Maxwell