Choosing the Right Pressure Washer for Your Needs
When it comes to buying a pressure washer, the number of options can be overwhelming. From PSI ratings and GPM flow to pump types and drive systems, the right choice depends on how—and how often—you plan to use your machine.
Whether you're a homeowner, contractor, or growing wash business, here are five expert tips from LNI Equipment to help you pick the right pressure washer for your needs.
1. Know Your Application: What Will You Be Cleaning?
Before comparing specs, define the primary purpose of the machine:
| Application | Suggested PSI | GPM (Gallons Per Minute) |
|---|---|---|
| Home siding, patios | 2,500–3,000 PSI | 2.5–3.5 GPM |
| Commercial properties | 3,500+ PSI | 4–5.5 GPM |
| Concrete & heavy equipment | 4,000+ PSI | 5.5+ GPM |
Rule of thumb:
- Higher PSI = more force (great for stubborn stains)
- Higher GPM = faster cleaning (covers more surface)
LNI Equipment carries a full range of belt-drive and direct-drive pressure washers suited for each category
2. Understand Pump Types and Lifespan
The pump is the heart of any pressure washer. There are three main types:
- Wobble pump: Low cost, not serviceable—best for light homeowner use
- Axial cam pump: Mid-range, limited repairability—suitable for part-time pros
- Triplex pump: Professional-grade, fully serviceable, long lifespan
At LNI, most of our builds use triplex belt-driven pumps, which are ideal for regular use and easy maintenance.
3. Choose the Right Drive System
Drive type affects durability and maintenance.
- Direct Drive – Pump connects directly to the engine. Compact, cost-effective, but runs hotter and wears faster. Ideal for occasional use.
- Belt Drive – Uses a pulley system to reduce vibration and heat. Runs cooler, lasts longer, and is easier to service. Best for daily contractors or fleet use.
We recommend belt-drive units for soft washing and pressure washing businesses running full-time.
4. Pick the Right Power Source: Gas vs. Electric
- Gas Pressure Washers
- More portable
- Higher PSI/GPM
- Ideal for large properties or mobile services
- Electric Pressure Washers
- Quieter, cleaner, and easier to maintain
- Best for indoor or small residential jobs
- Requires a nearby electrical source
LNI Equipment primarily specializes in gas-powered commercial-grade systems, including custom skid and trailer builds.
5. Don’t Forget Accessories and Upgrade Potential
The machine is just the start. Your pressure washer will need:
- High-pressure hose & reel
- Quick-connect fittings and nozzles
- Surface cleaner attachment
- Downstream injector
- Chemical tank (for soft wash integration)
Planning to grow your services? Consider a unit that’s compatible with soft wash systems or can be mounted on a trailer for mobile work.
At LNI, we also build fully integrated setups with:
- Soft wash proportioners
- SH tanks
- Hose reels
- Surface cleaner storage
- LED lighting and signage
Final Thoughts
Choosing the right pressure washer isn’t just about picking the biggest or most powerful machine—it’s about matching the tool to the job. By understanding your workload, surface types, and long-term goals, you can invest in equipment that saves time, delivers results, and holds up under pressure.
Need help picking your next pressure washer?
LNI Equipment offers expert guidance, custom builds, and pro-level support.
We stock:
- Commercial-grade pressure washers (belt and direct drive)
- Soft wash compatible setups
- Skid and trailer builds
- Accessories, pumps, tanks, and more