Whether you’re in the field every day or rely on your pressure washer for weekend detailing or seasonal clean-ups, routine maintenance is critical. A well-maintained pressure washer not only performs better but also lasts longer, saving you time, money, and headaches. At Veloci Performance Products, we understand the demands of the job and the importance of reliable equipment. That’s why we’ve created this pressure washer maintenance checklist to keep your equipment running at peak performance.
1. Change the Oil Regularly (Engine + Pump)
Like any gas-powered machine, your pressure washer’s engine and pump rely on clean oil to function properly. Dirty or degraded oil can cause wear over time.
- Engine oil should be changed after the first 5 hours of use, then every 50 hours or once a season.
- Pump oil typically lasts longer but should still be swapped out every 200–250 hours, or as recommended by the manufacturer.
Look for signs like dark, gritty oil or leaks beneath the machine. And when changing oil, make sure to use high-quality lubricant designed specifically for small engines or pressure washer pumps. For example, MTM Hydro’s non-detergent pump oil is a reliable option that meets most commercial-grade specs.
2. Inspect the Spray Gun
The spray gun is one of the most-used components on any washer, and it’s often the first to show signs of wear. Sticking triggers, leaks, or fatigue during long jobs are all signs it may be time for an upgrade.
Many professionals prefer a front-entry spray gun with an ergonomic grip to reduce hand strain. Models like the Italian-made SGS35 are especially popular for their durability and comfort. The built-in swivel also helps prevent hose binding, which means smoother operation and less wear on your hose.
If your current spray gun is leaking or uncomfortable, replacing it can make a big difference in both performance and efficiency.
3. Check Your Nozzles and Spray Tips
Your nozzles take a lot of abuse; high pressure, heat, and debris from the water stream can gradually wear down the internal orifice. This can lead to uneven spray patterns, reduced cleaning power, or even pump damage.
We recommend checking your nozzles regularly for clogs and buildup. A simple soak in vinegar can help clear mineral deposits. Still, if you notice performance issues, it’s probably time to replace them.
When selecting replacements, color-coded quick-connect nozzles make switching between spray angles easy. To reduce the risk of scratching painted surfaces (especially in detailing), consider using nozzle guards, which slip over the tip and provide a soft, protective buffer.
4. Flush the Pump with Anti-Freeze Treatment
If you’re storing your washer for more than a month, especially over the winter, it’s essential to protect the pump’s internal components.
Using a pump saver solution keeps seals lubricated and prevents freezing and corrosion. It’s a small step that can prevent major damage down the line. Just connect the bottle to the water inlet and run the solution through your system for long-term protection.
This quick procedure is especially helpful for contractors who store units on trailers or in unheated garages.
5. Look for Wear and Tear on Your Hose
Hoses are under constant pressure and can degrade quickly if not checked regularly. Look for signs of bulging, cracking, or exposed steel braid. Kinks are another concern—they can weaken the hose and create failure points.
For a durable, professional-grade upgrade, consider moving to a hose designed to handle daily use. Features like a non-marking jacket, steel braid reinforcement, and abrasion resistance can help your hose last longer and perform better. Some models also come with a textured wrap for added grip, especially helpful when working with wet gloves.
Investing in a quality hose minimizes downtime and protects both you and your equipment.
6. Clean the Inlet Filter
Most users overlook the inlet filter, but it’s one of the most important lines of defense for your pump. This small screen prevents debris from entering the system, but over time, sediment and mineral buildup can restrict water flow.
Before each use, take a few seconds to check the filter. If it looks clogged or brittle, rinse it thoroughly or replace it. Keeping this filter clean helps maintain strong, consistent flow and protects your pump from premature failure.
7. Tighten Connections and Check for Leaks
Leaks don’t just waste water, they also reduce cleaning power and can signal loose fittings or damaged O-rings. Take a quick walkaround before each job and inspect:
- Spray gun inlet
- Wand and lance connections
- Hose fittings
- Pump outlet
If you’re constantly dealing with leaks or wear on your fittings, it may be time to switch to stainless steel quick-connects. Stainless options are more resistant to rust and galling, making them ideal for frequent use or harsh environments. They also provide a tighter seal and are less likely to wear out threads over time.
8. Maintain the Foam Cannon
If you're using a foam cannon for auto detailing, routine cleaning will help you get consistent, thick foam every time. Rinse out the bottle and internals after each use, and check for signs of clogging or wear.
The PF22 Foam Cannon is known for its patented adjustable spray pattern. Foam cannons are easy to maintain and compatible with most standard quick-connect setups. If your current cannon is producing watery foam or leaking, it might be time to refresh the internal mesh filter or upgrade altogether.
A clean foam cannon looks more professional, and it also helps you apply soap evenly and avoid waste.
9. Test Performance with a Pressure Gauge
If your machine seems sluggish or underpowered, testing the PSI (pressure) and GPM (flow rate) can help diagnose the issue. These metrics can reveal nozzle wear, pump issues, or clogs before they become bigger problems.
A simple glycerin-filled gauge can be mounted inline for testing. Keep one in your trailer or garage as part of your regular inspection process. Knowing your numbers ensures your washer is performing as it should.
10. Store Your Equipment the Right Way
Proper storage is one of the most overlooked parts of pressure washer maintenance. After each job:
- Drain the pump and hoses
- Store indoors or in a covered area
- Coil hoses loosely (don’t kink them)
- Hang spray guns and accessories to prevent drops
If you’re working out of a shop or garage, a wall-mounted hose reel can keep things organized and help reduce wear. Reels with stainless internals and locking features are a great way to keep your workspace clean and your gear protected.
Final Thoughts
Taking care of your pressure washer doesn’t have to be complicated. With a little time and the right tools, you can avoid costly repairs and keep your equipment running like new.
At Veloci Performance Products, we’re here to support professionals and enthusiasts alike with top-tier accessories and support. From spray guns to hoses, fittings to foam cannons, we only offer products we’d use ourselves.
Need help choosing the right upgrade? Reach out to us, we’d be happy to point you in the right direction.
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