How to Use Electric Pressure Washer
An electric pressure washer works when you set it up right: water on, GFCI plug in, wide nozzle on, air purged, then wash top to bottom and shut it down clean.
On this page
A driveway gray with grime, a car coated in road dirt, a patio that has lost its color over winter: an electric pressure washer turns a slow hose job into a quick wash, if you set it up right. How to use electric pressure washer comes down to a short routine: connect the water, plug into a GFCI outlet, fit a wide nozzle, purge the air from the line, wash from the top down, and shut the unit down clean. This guide walks through that routine in order, with the safety rules that keep the spray on the surface and off people and pets.
As an Amazon Associate I earn from qualifying purchases. GarageToolHQ earns a commission when you buy through links on our product pages, at no extra cost to you. Read our affiliate disclosure.
Below: setup, nozzles, the wash itself, soap and foam, shutdown and storage, and the safety rules.
How to use electric pressure washer: set it up first
Start with the water. Connect a garden hose to the washer inlet and tighten the fitting by hand, then connect the high-pressure hose and the wand, and check each joint for drips before you switch anything on. Turn the water on at the tap and squeeze the trigger with the motor off until water runs out in a steady stream with no sputtering: that pushes the air out of the line. Never run the pump with no water in it, since a dry pump can wear out fast.
Plug the washer into a GFCI-protected outlet and keep the plug and the cord ends dry. The Toyqqeow listing cites a 35 ft GFCI cord and a 20 ft hose, for up to 55 ft of reach from the outlet, so you can cover a driveway or a patio without moving the plug. Unwind the hose fully and lay it out straight, so it does not kink or snag while you work. Wear eye protection before you pull the trigger, and never point the wand at people or pets.
Pick the nozzle before you pull the trigger
The nozzle sets how wide the spray fan is and how hard the jet hits. The Toyqqeow listing cites 5 nozzle modes: 0°, 15°, 25°, 40° and a foam nozzle. Start with the 40° fan, which spreads the jet wide and hits soft, and move to a narrower fan only if the dirt stays put. The 0° jet is a pencil-thin stream that can cut into paint and soft wood, so keep it for stubborn spots on hard concrete and keep it moving.
| Nozzle | Spray | Use it for |
|---|---|---|
| 0° | Narrow jet | Stubborn spots on hard concrete |
| 15° | Narrow fan | Concrete and grime that holds on |
| 25° | Medium fan | General washing on patios and drives |
| 40° | Wide fan | Cars, rinsing and delicate surfaces |
| Foam nozzle | Thick foam | Laying soap on the car or the patio |
Try the spray on a hidden spot before you wash the whole surface, and hold the wand at a steady distance while you work. Keep the jet moving in slow, overlapping passes, and never hold it on a patch of paint, wood or sealant until it strips. If the surface starts to mark, switch back to a wider fan.
Wash from the top down
With the air purged and the nozzle fitted, switch the motor on and start at the top of the surface, so dirt runs down onto ground you have not washed yet and you rinse it away as you go. Work in slow passes with the wand held at a steady angle, and overlap each pass so no strip of dirt is left between them. Rinse the surface with the wide fan as you go, and give the car or the patio a final rinse from the top down when the dirt is gone.
Keep the spray away from people, pets, electrical outlets and fixtures, and never spray into vents or under trim where water can sit. Wear eye protection the whole time, and keep children and pets out of the wash area while the unit is running.
Soap, foam and rinsing
For a car or a grimy patio, soap helps the jet do more with less pressure. Fit the foam nozzle and fill the soap bottle with car wash soap: the Toyqqeow listing cites a 500 ml soap bottle. Lay foam over the surface from the bottom up, so drips run over foam and do not streak, let it sit briefly to loosen the dirt, then rinse it off from the top down with the 40° fan before the foam dries. See the guide to how to use a foam cannon for the foam step, and the picks for car wash soap for a pressure washer.
What an electric pressure washer can wash
An electric washer suits the jobs around a home garage: cars, driveways, patios, fences and outdoor furniture. Hard surfaces take the narrower fans, while paint, wood and trim want the wide fan and a light touch. Loose paint, cracked sealant and soft wood mark easily under a jet, so try a hidden spot and start wide on any surface you have not washed before. If the dirt does not move with the wide fan, step down a fan size and try again, and keep the wand moving the whole time.
Some jobs do not belong on a pressure washer at all. Never point the jet at people or pets, and never spray electrical outlets, fixtures or vents. Keep the spray off window seals and soft trim, and do not use the jet to strip paint unless you mean to take the paint off: the jet will lift loose paint fast, and it will mark the wood under it.
Shut down, drain and store
Switch the motor off and turn the water off at the tap, then squeeze the trigger to release the pressure left in the line before you disconnect anything. Disconnect the hose, and drain the hose and the unit so no water sits inside over winter. Coil the hose and the cord loosely, and store the unit upright in a dry place. The Toyqqeow listing describes a 2-stage pull rod and large wheels for moving the unit, so roll it to storage instead of carrying it.
Keep electric pressure washers on a GFCI outlet, never point the wand at people or pets, wear eye protection with polishers and chemicals, and read the label before mixing any cleaning products. Read our Safety Disclaimer.
FAQ: garage tools
Do I need a special outlet for an electric pressure washer?
Plug the washer into a GFCI-protected outlet, and keep the plug and the cord ends dry. The Toyqqeow listing cites a 35 ft GFCI cord, which shows how far the unit can sit from the outlet. Never plug a washer into a damaged outlet, and follow the manual for your model.
Which nozzle should I start with?
Start with the 40° fan, which spreads the jet wide and hits soft. Move to a narrower fan only if dirt stays put after a pass with the wide fan, and keep the 0° jet for stubborn spots on hard concrete. Try the spray on a hidden spot before you wash the whole surface.
Can I wash a car with an electric pressure washer?
Yes, with a wide nozzle and foam. Use the 40° fan or the foam nozzle, keep the wand moving, and hold it back from the paint so the jet does not strip it. See the picks for the best electric pressure washer for cars.
How much pressure does an electric pressure washer make?
It varies by model, so check the listing for the washer you own. The Toyqqeow listing is rated at 5000 PSI. At that figure the jet can strip paint, so match the washer to the job, keep the wand moving, and start with the wide nozzle in any case.
What should I never spray with a pressure washer?
Never point the jet at people or pets, and never spray electrical outlets, fixtures or vents. Keep the spray off windows at close range, and off loose paint, soft wood and sealant that the jet can strip. Wear eye protection while you wash.
Related: the best electric pressure washer, the best electric pressure washer for cars, foam cannon for a pressure washer and the car detailing hub.
