Apparently, for pressure washing your home around 2500-3000 PSI works perfectly. No need to scrub or rinse, just spray it and let it sit there. First, a yearly scrub for your concrete and cement floors goes a long way. A driveway that fits 4 cars will take an electric pressure washer a 2 hours to clean. For added convenience, the Ryobi 1700-PSI pressure cleaner is equipped with on-board accessory storage and an additional Turbo nozzle for up to 50% more cleaning power. Built on the Genesis Framework, Powerhouse International Platinum 3000 PSI. The more important factor for the vast majority of power washing of concrete and brick driveways is the GPM because that dictates the speed you can complete the job in. Basically, most pressure washers will produce enough PSI to do most residential cleaning projects. Model: BM801700 or ZRBM801700. 4.6 out of 5 ... American Hydro Clean RSC100-AF 15" Rotating Surface Cleaner 3400 psi. Pump: Electric Black Max Pump Normal wear and tear leaves behind layers of dirt that build up on the surface of the pavers. Water PSI & GPM Chart. We’ve put together a list of the top 5 accessories that can make your weekend cleanup jobs easier and faster. Before getting a machine, I would try plain old bleach. What kind of flooring should I use in my Basement... Help bring out my inner concrete craftsmen. Water alone will do a good job of cleaning concrete, but if you need to remove grease or oil most pressure washers have an attachment to add pressure washing chemicals. Most electric pressure washers create 1300-1700 pounds per square inch of pressure (PSI) with a water flow of 1.5 gallons per minute (GPM), but experienced contractors recommend between 2000 and 3000 PSI and a flow of at least 2.5 GPM to clean dirty concrete effectively. Ask MetaFilter is a question and answer site that covers nearly any question on earth, where members help each other solve problems. The answer is yes. Thanks for watching! It takes 2-3 weeks, then it's gone. An extremely strong and dense con-crete can be produced with a 24 hour compressive Strength higher than 14,000 psi (100 MPa) with conventional methods of production, room temperature curing, and cement-based binders and admixtures. There were a couple of more serious grease spots that I couldn't clean, though. i would recommend going higher, such as 3000-3500 psi. 7,000 - 50,000 PSI: These ultra-high pressure washers are also known as water blasters. If all you're going to be using it for is to pressure wash the driveway once a year do not get a gas model. Powered by electricity, getting this unit up and working is as easy as plugging it in. Decorative concrete is created through a finishing process that is intended to provide an aesthetic quality. You don’t have to worry about any chemical odors or fuel spills with this pressure washer. I do this on my roof which gets black mildew streaks from bird poop. Just make sure you ask for the surface cleaning attachment. Our electric washer outputs a smaller amount of water than a friend's gas motor washer, so the jet is narrower and cleaning takes longer with ours, but it works fine. Great for those who are going to use the washer around the house, it allows users to get the most of the product without worrying about … Most electric pressure washers will not have enough power to fully clean a concrete driveway. After a few rainy days, the stuff should be gone. We bought an electric pressure washer from Costco that works at 1700 psi and I've recently been using it to clean mildew off concrete successfully. A 2,000 PSI electric machine with 1.8 GPM has 3,600 CUs. NOT just the gun that comes with the washer. This unit is only 1700 PSI so it did have some issues with deep stains on my driveway. Cleaning concrete with a power washer is a straightforward process. Cold Water vs. Hot Water Pressure Washer. The average homeowner needs to know that pressure washing can actually cause permanent damage to most pavers. An electric pressure washerin the 1300 PSI to 2000 PSI range will be fine for residential tasks such as washing your car, cleaning a small patio or deck, and so on. Testing out the Greenworks 1700 PSI compact pressure washer from Lowes! I have the exact washer that humboldt32 referenced, and it works like a charm. Ten percent should do it. however this will … Everything from concrete to siding, vehicles, decks and fences, residential pressure washers help homeowners get that professional clean look without paying a pro. Renting is the way to go. To help you setup your pressure washer correctly, check out these tips and tricks.A pressure washer with about 3 gpm and 3000 psi is ideal for most concrete and brick cleaning jobs. Each concrete structure has a normally acceptable psi range. Under 1700 PSI; 1700 to 1999 PSI; 2000 to 2599 PSI; 2600 to 2799 PSI; 2800 to 3099 PSI; 3100 to ... Erie Tools 20" Polypropylene Flat Surface Cleaner with Wheels for Concrete Hot and Cold Water Pressure Washers 4000 PSI 4 GPM.