What to Know About the 864 Water Walkers Pressure Washer

The 864 Water Walkers is a wheeled pressure washer designed for homeowners who need to move equipment across driveways and patios

The 864 Water Walkers is a walk-behind pressure washer with large wheels that let you roll it from one job to the next without lifting. It sits in the mid-range of pressure washer options—more portable than a stationary model, but heavier-duty than a handheld unit. The machine is built to handle concrete cleaning, deck washing, and similar outdoor tasks where you need steady pressure and the ability to cover ground quickly.

If you're comparing pressure washers and wondering whether this model fits your needs, the key difference is the wheels. You don't carry it; you push it. That matters if your property has long driveways, multiple patios, or if you plan to use it regularly enough that portability becomes a real factor in your decision.

Key Takeaways

• The 864 Water Walkers has wheels and a handle, so you push it rather than carry it, making it practical for larger outdoor cleaning jobs.
• The model is designed for concrete, decking, and similar surfaces where you need consistent pressure applied over a wide area.
• Wheeled pressure washers like this one cost more than handheld models but less than commercial-grade stationary equipment.
• You'll need a water source nearby and a power outlet or fuel supply, depending on whether the model is electric or gas-powered.

What surfaces the 864 Water Walkers handles well

This model works best on flat, hard surfaces. Concrete driveways, patios, and garage floors are the primary use cases—the wheels roll smoothly on these surfaces, and the pressure is strong enough to remove dirt, algae, and weathering without damaging the concrete itself.

Wooden decks are another common application, though you need to adjust the pressure downward to avoid splintering the wood. The wheels let you move steadily across the deck without stopping and starting, which helps you maintain an even cleaning pattern. Asphalt driveways can be cleaned, but the heat and pressure combination can sometimes soften asphalt, so many owners use lower pressure settings on these surfaces.

Avoid using the 864 Water Walkers on delicate surfaces like siding, painted surfaces, or areas where you need fine control. The wheels make it harder to stop precisely, and the pressure can be too strong for these materials.

Power source and water requirements

The 864 Water Walkers comes in both electric and gas-powered versions. Electric models need to stay within cord length of an outlet—typically 50 to 100 feet depending on the extension cord you use. Gas-powered versions give you more freedom to move around your property but require fuel, regular maintenance, and produce noise and exhaust.

Either way, you need a water source. Most owners connect a garden hose to the machine's intake port. The hose needs to be long enough to reach from your outdoor faucet to wherever you're working. If your water pressure is low, some models include a tank you can fill manually, though this is less common on wheeled units.

Maintenance and storage

Pressure washers need regular care to stay functional. After each use, you should run clean water through the system to flush out any debris. At the end of the season, drain the fuel (if gas-powered) or store the machine in a dry place. Check the pump and hoses for cracks or leaks before you start using it again.

The wheels and axles can accumulate dirt and rust if left outside. Rinse them down after use, especially if you've been cleaning near salt water or in humid coastal areas. Store the machine in a garage or shed rather than leaving it exposed to weather year-round.

Cost and where to find one

Wheeled pressure washers like the 864 Water Walkers typically cost between $400 and $800 new, depending on the power source and brand. You can find them at hardware stores, home improvement centers, and online retailers that carry outdoor equipment. Some rental shops also stock similar models if you want to try one before buying.

Used models show up on classified sites and secondhand marketplaces. If you go this route, test the pump and check for leaks before handing over money. Ask the seller how often they used it and whether they maintained it regularly—a well-kept used pressure washer can be a good value, but a neglected one may need expensive repairs.

When to choose a different pressure washer

If your cleaning jobs are small and occasional—a car, a patio furniture set, a small deck—a handheld or compact pressure washer might be enough and costs less. If you're cleaning a large commercial property or need to run the machine for hours at a time, a stationary or trailer-mounted model designed for professional use would be more efficient.

The 864 Water Walkers is built for homeowners who have enough outdoor space and enough regular cleaning to justify the investment in something more capable than a handheld unit, but not so much work that they need professional-grade equipment.

Frequently Asked Questions

Can I use the 864 Water Walkers on my house siding?

Not recommended. The pressure is too strong for most siding materials, and the wheels make it hard to control the spray pattern precisely. Siding needs a gentler approach with a handheld wand and lower pressure settings. You risk water damage behind the siding if you use a wheeled pressure washer on it.

How long does it take to clean a typical driveway?

A single-car driveway usually takes 30 minutes to an hour, depending on how dirty it is and how much pressure you use. The wheels let you move steadily without stopping, which speeds up the job compared to handheld methods. Larger driveways or heavily stained concrete take longer.

Do I need a special hose for the water intake?

A standard garden hose works fine for the intake. Make sure it's in good condition with no cracks or leaks, since any loss of water pressure reduces the machine's cleaning power. Some owners use a hose filter to keep sediment out of the pump.

What's the difference between electric and gas models?

Electric models are quieter, need less maintenance, and work well for residential jobs. Gas models are more powerful and don't need a cord, but they're louder, produce fumes, and require seasonal fuel management. Choose electric if you have nearby outlets and don't mind the cord; choose gas if you need to roam far from power sources.

Can I rent one instead of buying?

Yes. Many equipment rental shops carry wheeled pressure washers by the day or week. Renting makes sense if you have a one-time large project or want to test whether you'll use it enough to justify the purchase price.