Greenworks Pro 2300 PSI 2.3 GPM Brushless Pressure Washer Review: The Flow Figure Is the Point

Who this washer is for

Corded pressure washers nearly all advertise 2000 to 2300 PSI, and the number that separates a slow one from a quick one is flow, not pressure. Greenworks’ Pro 2300 PSI model quotes 2.3 GPM, which is well above the 1.2 to 1.6 GPM most 120V washers carry, and that is the reason to look at it. It is built for the homeowner with a two-car driveway, vinyl siding, a deck and a couple of vehicles who wants to finish the job in an afternoon rather than a weekend.

This review is based on the maker’s published specifications and on recurring owner feedback. We have not run this product ourselves.

What you get

The washer with a TruBrushless motor, Smart Flow pressure-sensing control and an axial cam pump; a 25 foot kink-resistant high-pressure hose; a 35 foot power cord with an inline GFCI; a metal quick-connect wand with 15, 25 and 40 degree nozzles, a soap nozzle and a turbo nozzle; a single onboard soap tank; onboard tool storage; and 10 inch wheels. Greenworks lists the unit as SGS certified and backs it with a 3 year limited tool warranty and a 10 year warranty on the brushless motor. Weight and dimensions are not given in the listing.

Pressure and flow

Treat 2300 PSI and 2.3 GPM as the maker’s maxima. PSI is what lifts grime off concrete and GPM is what carries it away; a washer with more flow rinses a driveway or a long run of siding noticeably faster at the same pressure. Greenworks’ Jet Flow claim of 50 percent more flow is a comparison to its own earlier models rather than an industry figure, but the 2.3 GPM rating itself puts this unit near the top of the corded class on paper. In practice the pump will not deliver peak pressure and peak flow together; expect full pressure through the 15 degree nozzle for stains and full flow through the 40 degree nozzle for rinsing. Owners describe it as a strong step up from 1.2 GPM entry washers on siding and driveways and adequate for stripping a weathered deck with the turbo nozzle and patience.

Pump, motor and pressure sensing

The motor is brushless, which runs cooler and quieter than the universal motors in budget washers and is why Greenworks puts a 10 year warranty on it. Smart Flow pressure sensing adjusts motor output to the nozzle and trigger, the practical effect being less surging and a motor that idles down when the trigger is released. The pump is an axial cam design, the standard for consumer washers; it is not the triplex plunger pump found on semi-professional machines, so it is a part with a finite life under daily commercial use, though fine for a homeowner washing a few times a season.

Hose, cord, wheels and handling

Twenty-five feet of hose plus 35 feet of cord gives about 60 feet of working radius from an exterior outlet, enough for most driveways without an extension cord, which pressure washer makers generally advise against. The inline GFCI is a safety requirement, not an extra. Ten inch wheels roll over lawn and gravel better than the small casters on compact units, and the onboard tool storage holds the nozzles so they stop ending up in the grass. The metal wand is a durability point over the plastic wands on cheaper machines. The single soap tank is adequate; two tanks would only matter if you switch detergents mid-job.

Living with it

Flush the pump with clean water after soap, never run it dry, and store it where it will not freeze; a pump that freezes with water in it cracks. Pump saver fluid before winter is cheap insurance. Replace the O-rings on the quick connects as they weep. The turbo nozzle is the fastest tool for concrete but will etch soft wood and strip paint, so keep to the 25 or 40 degree tips on siding and decks. The 3 year tool and 10 year motor warranty terms are on the product page.

Alternatives to Consider

The Ryobi RY142300 2300 PSI brushless washer is the closest competitor with a similar spec and Home Depot support. The Westinghouse ePX3100 is a compact, lighter 2300 PSI unit for a smaller patio and car-washing duty. If the jobs are mostly stripping concrete and the budget allows, a Simpson MegaShot gas washer brings a triplex pump and higher flow at the cost of noise and maintenance.

Verdict

Buy the Greenworks Pro 2300 PSI 2.3 GPM if you want the fastest rinsing a corded washer can offer, with a brushless motor warranty to match. Skip it if you only wash a car and a small patio, where a lighter, cheaper 1.4 GPM unit is easier to store and fast enough.