How To Maintain Your Pressure Washer

For most of us, it’s all about scrubbing the pressure washer here and there once in a year after streaking off our seasonal home maintenance checklist.

And don’t give me that look, please:

If you’re guilty of this, you’re definitely killing the life, efficiency, and performance of your system. And the best thing you could do right now is to put in place a do-it-right maintenance routine.

In that light:

I have created this complete guide to show you exactly how to maintain your pressure washer for performance and longer shelf-life.

Sounds great? The big question first:

Why Should You Perform Routine Maintenance For Pressure Washers?

Let’s get this straight:

Keeping your pressure washer maintenance routine in check will;

  • Make sure your machine withstands long-term, heavy-duties
  • Boost the consistency of performance
  • Help to prevent a costly repair
  • Eliminate the chances of a breakdown
  • Extend service life
  • Stamp out the possibilities of inconveniences

And you know the worst-case scenario?

Waking up to a dead gasoline pressure washer and panicking about how to get your nightmarishly-gross BBQ/patios ready before the visiting friends arrive.

We don’t want that happening, right?

But pressure washers, like most other hard-working home appliances, are cumbersome workhorses with multiple components. So, it’s always a good idea to treat the parts differently.

Now let’s start with…

Checking For Leaks; How To Do It & What To Do When You Find One

Always remember:

If you notice your pressure washer leaking water, fuel, or oil, always unplug the machine first. Once done, to check for the exact leaking points and locations of…

Fuel And Oil Leaks

Do this:


  • Step 1; carefully scan the fuel/oil frame and fuel lines for drips
  • Step 2; check the pump’s underside and the engine for fuel residue and excess oil
  • Step 3; now, with a napkin, wipe all these places one after the other while keeping an eye out for drips
  • Step 4; you should spot the leaking points at the end of step 3


Now, though the best solution is to call your technician, you can always close leaks with sealants.

How about checking for…

Water Leaks


Water leaks, often than not, happen when the filter screen of the clear adapter goes out of position. This disrupts the tight connection to the water inlet and further causes leaks.

To get around this:

Check your user’s manual for how to reposition your filter screen. It’s always unique to every make so there’s no general way around this.


After checking for leaks and walking around them, there are more components to take care of.

Let’s get this on the road:

How To Maintain The Spray Gun, The Nozzle, The Water Inlet Screen, And The Hose

So, let’s take this one after the other:

Starting with…

How To Maintain The Hose

At the end of the day, the best option is to always replace a broken hose. This is especially important for high-pressure hoses that pose a greater danger when they break.


Here are the signs of a hose that demands a replacement;

  • Bulging hose caused by wear and kinking
  • Cuts larger beyond sealing
  • Cracks, generally
  • And leaks

Moving on to…

How To Maintain The Nozzle

Know this:

Nothing hurts the nozzle more than the debris, mildew, graffiti, grime, mold, and mud that clings to it during action. So, it’s always wise to give that nozzle a good cleaning after and before every wash.

Here’s how to do this:


  • Step 1; get hold of your nozzle and locate the orifice
  • Step 2; keep an eye out for mildew, grime, mud, mold, and other dirt
  • Step 3; grab a nozzle tip cleaner (or an unfolded paper) and push that debris out
  • Step 4; finally, flush with water


Easy-peasy, that was. Right?

Now, let’s talk about…

How To Maintain The Spray Gun

The one thing you should is this:

The usability of pressure-based systems is determined largely by how functional the control mechanism is. And in this case, it’s a spray gun.

So here’s the question:

How do you keep that spray gun at maximum functionality?

Here are the primary maintenance tips for this:

  • Always check the connection between the hose and the gun for breaks/leaks before and after action
  • During action, make sure you’re not applying too much pressure on the gun trigger
  • Just before storing the unit away, pull the trigger softly to confirm the back spring is functioning
  • Finally, always replace a faulty gun immediately you notice a fault in it

And now:

How To Maintain The Water Inlet Screen

It’s a no-brainer:

The water inlet screen is more exposed to debris, mildew, and mud just like the nozzle. So, endeavor to check it before and after every session for thorough cleaning and flushing.

Now, let’s move on to…

How To Check For Fluids

This is pretty straight-forward:

Always make sure both the fuel tank and the oil container are filled to a reasonable level, if not maximum, before use. I usually do this 2 days before the d-day to avoid downtime or disappoints of any kind.


To Check For Petrol Level

    • Step 1; look around the fuel gauge if yours has one


  • Step 2; or open the tank cap to see directly
  • Step 3; add the type of gas recommended by your manufacturer



To Check For Oil Level


  • Step 1; locate the oil dipstick
  • Step 2; take it out of position and wipe it clean
  • Step 3; push it back in without unscrewing and pull it out again
  • Step 4; check where the oil stain reaches this time
  • Tep 5; if it’s low, refill the tank with healthy oil


Before wrapping this up, here are some other…

5 Important Pressure Washer Maintenance Tips


  • Check the air filter every week for cleaning and replace it once in every 5 months
  • Change the pump oil every 4 months
  • Clean the metal tip of the spark plug with oil every week
  • Remove the carbon deposits on the spark arrestor of the exhaust system weekly
  • Keep your system covered with protective capes during winter


And that’s it:


One thing I am sure of is this:

If you stay committed to the pressure washer maintenance tips shared so far, you will get the most of your system. The best part is that you will avoid the chances of your system passing out on you.

But again:

If you have further questions, thoughts, or something to call me back to, use the comment box below, please.

Author: Ibrahim Clouds

Hey! Ibrahim Clouds here. I am a weekend DIYer seriously crazy about home appliance projects/repairs and your go-to guy for great tips/nuggets/answers to all home appliance-related topics. And my job? Other than helping you here on Housechime, I also write Amazon listing copies (largely for home appliance sellers), and work as a ghost PR officer for some SMBs.

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