A pressure washing machine makes quick—and fulfilling—work of blasting away the gunk. For cleaning walkways and stripping vintage paint from a deck, not anything compares to the unbridled energy of those machines.

In reality, it’s easy to get over-excited (or even inflict a serious injury—but more on that later). Houston Prssure Wash.

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“You might be willing to pressure-wash pretty much everything across the house, but that’s no longer continually a extremely good idea,” says Dave Trezza, the check engineer who oversees pressure washer testing for consumer reports. “The supercharged circulate of water can damage paint and nick or etch wood or even certain styles of stone.”

below is CR’s manual to understanding when it makes sense to smooth with a pressure washer and while a garden hose and a scrub brush will suffice.

How CR tests pressure Washers
We degree how a great deal pressure each model can produce, in kilos in line with square inch, giving a better score to people with a better psi. Then we fireplace up every strain washing machine and use it to strip paint from painted plastic panels, timing how long it takes. fashions with a better pressure output have a tendency to perform better in this test.

We also measure noise, and also you should understand that the majority stress washers are loud sufficient to require hearing safety. eventually, we length up ease of use by evaluating fundamentals just like the system of including gasoline and noting capabilities that improve the enjoy. (A model whose engine routinely shuts off whilst oil is jogging low will score better.)

irrespective of overall performance, it’s CR’s coverage to advise handiest fashions that don't include a zero-diploma nozzle, which we trust poses an useless protection chance to users and bystanders.

examine on to find out whether or not it makes sense to pressure-wash your deck, siding, roof, automobile, or driveway.

Deck
must You stress-Wash It?
sure. Decks crafted from South American hardwoods together with Ipe, Camaru, and Tigerwood will preserve up to the strength just best. Decks made of strain-handled wood are normally k, too, assuming you don’t maintain the nozzle too near. strain-dealt with wood is normally southern yellow pine, that's pretty tender, so start with a low-strain nozzle on an not easily seen spot to ensure the spray is not etching or marking the wood. You’ll need to check your owner’s guide to peer which nozzle and putting the producer recommends for cleansing decking, and how a long way faraway from the surface you want to maintain the nozzle. anyways, work along the length of the board, going with the grain of the wood.

For this activity we advocate the Greenworks GPW1951, $189, which offers powerful cleansing at an wonderful charge.
now not all decks need to be cleaned with a pressure washing machine. newer composite decks from manufacturers including TimberTech and Trex frequently face up to deep staining within the first place and can be wiped clean with a light scrubbing. If a mild scrub and rinse with a garden hose isn’t sufficient to get your composite deck easy, check the terms of the warranty before the usage of a pressure washer to make certain you don’t void it.

earlier than you shop for a brand new strain washer, take a look at our purchasing manual and scores of gas and electric powered stress washers.

Roof
must You pressure-Wash It?
No. Tempting as it might be to blast away unpleasant moss and algae, the use of a strain washer to smooth your roof is dangerous, now not to mention potentially unfavorable. For starters, we never advocate the use of a stress washer while you’re perched on a ladder because blowback may want to throw you off stability. The powerful move of water can also loosen roof shingles and, with asphalt shingles, strip them of the embedded granules that help extend the lifestyles of your roof.

as an alternative, spray down the roof with a cleaner that kills mildew and moss or apply a 50-50 mixture of bleach and water in a pump sprayer and permit the moss die on its very own. make sure to build up strain in your pump sprayer from the safety of solid ground before mountaineering a ladder to spray your roof.

an extended-term method, if there’s an excessive amount of colour, is to trim overhanging branches or cut down bushes to allow sunlight to hit the roof. That’s the important thing to preventing moss from growing inside the first place. 

car
ought to You pressure-Wash It?
No. lots of people use a pressure washing machine to smooth their vehicle, of route, but it can do more harm than precise. the use of a pressure washer can damage or nick the paint, that may cause rust. And a vehicle wash usually gets the job performed just great—so do a lawn hose and soapy sponge. Use a bit elbow grease and a specialized purifier on problem spots consisting of wheels.


Concrete Walkway and Driveway
Thought to You Pressure Wash It? sure. Concrete can easily face up to a effective cleaning without a good deal concern over-etching. generally, a finer nozzle will prove to be more effective at spot-cleansing grease stains. For moldy or mold-covered cement, use lower stress and coat the surface in suds first. The Cub Cadet CC3224, $500, most of the maximum effective models in our ratings, might serve you nicely for this assignment, however, it consists of a zero-degree tip, which we endorse discarding in case you purchase this unit (see “strain washing machine protection,” underneath).

Siding
have to You stress-Wash It?
once in a while. Vinyl siding is pliable and might generally withstand pressure washing without plenty situation. The same goes for fiber cement siding. Aluminum siding, however, can dent, so it’s best to start on the lowest pressure putting with a vast nozzle, and use more focused blasts best for problem spots—the Troy-Bilt 020568, $three hundred, is a powerful model that’s especially clean to deal with and maneuver, which is great whilst you’re running your manner round a whole house.

timber clapboard siding may be efficaciously washed, too, but if your house was built earlier than 1978, have the outdoors paint tested first by using an EPA-licensed lead-remediation professional. in case you knock vintage lead paint free, it will settle in your soil and never break down due to the fact lead is a heavy metallic.

while using a stress washer to smooth any siding, you need to save you water from becoming trapped between the siding and your private home’s sheathing, because the moisture promotes mold. repair or replace loose, damaged, or missing siding, and take special care now not to spray water at once into any gaps around doors, windows, or below the lap joints on siding runs.

Don’t stress-wash shingle siding—the strain can knock the shingles unfastened. 

strain washer protection
stress washers come with nozzles ranging from zero ranges to approximately forty levels. The higher the wide variety, the wider the spray sample and the less concentrated (and potentially risky) the stream of water. consumer reports recommend against using a 0-diploma nozzle in any respect because it poses an unnecessary protection danger. Water concentrated to such a quality point can pierce many surfaces, consisting of shielding boots.

in case your pressure washer got here with a crimson zero-diploma nozzle, toss this nozzle out. the following size, a 15-degree nozzle, will do simply great for element paintings, which include casting off moss from the grooves between pavers. And usually wear listening to protection, protecting footwear, and gloves while you work.

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