For residential purposes, 2000 to 3500 PSI range is adequate enough. The WP2300 and WP2500have axial cam pumps powered by 160cc, Westinghouse westinghouse pressure washers OHV engines. The WP2700 and WP3000 use Kohler OHV 173cc and 196cc engines to power Axial piston pumps made by Annovi Reverberri.
Going through multiple cleaning sessions let us repeatedly set up, break down and test portability of these units. Many pressure washers had unique features like a hose reel, little baskets, spray wand rests, multiple spray tips, and other little features we tried out on-site. We didn’t lug all six washers to each location, but testing out each unit multiple times was sufficient to put it through its paces and get a real feel for cleaning with it.
When assembled, it has a sturdy metal roll-bar design, which is much more solid than the plastic bodies of most other electric models. One of the cars was covered in blobs of pine sap, which is tenacious in its stickiness and potentially damaging to the paint. Some of the patio furniture was ancient and hadn’t been cleaned in at least a decade.
We read reviews about people melting their high-pressure hoses on the engine when they weren’t careful. While this is definitely something you should note, it certainly isn’t a deal-breaker. We were skeptical at first that the Westinghouse had enough power to effectively blast grime off an old sidewalk and driveway that had permanent rust and oil stains. The red tip, though, cleans like a laser, leaving white lines in the stains, so we switched to the 15-degree green tip to evenly clean a wider patch. Needless to say, the red tip ripped off old paint in an instant.
In the configuration, the built-in axial cam pump produces a reliable and constant spray. At the bottom, the 12-inch wheels offer easy mobility on different terrains. This unit allows you to pour up to 32-fluid ounces detergent inside the built-in soap tank. Gas pressure washers won’t cause your electricity bill to spike, either. You’ll simply refill your gas pressure washer with gas from a gas pump, much like you would a gas lawnmower.