In general, the pressure you need to clean the inlet is around 3000 psi. Make sure that the pressure washer also has a good flow rate, if possible, around 3 GPM. This should be enough to clear the driveway. Use a degreaser if the inlet has oil stains.
You need 3000 psi (pounds per square inch) to clear a driveway. Some will say that 1500 psi will do, since most pressure cleaners sold for household use can only reach that. If you want to make sure that the pressure washer thoroughly cleans the entrance to your house, an industrial pressure cleaner is what you need. Industrial pressure cleaners can be rented at most local equipment rental shops.
There's no doubt that electric pressure washers at 1300 to 2300 psi can wash a concrete inlet, but they will take longer. If you have a large entrance with a lot of stains, you'll need more power to get the job done faster. Industrial pressure cleaners can clean and remove more dirt and stains much better than household pressure cleaners. Also, be sure to park the pressure washer near the high point to drag the hose behind you, rather than constantly kicking it out of your way.
And make sure you're not getting closer than 12 inches from the platform if you're not using low enough pressure. Apply a degreaser or concrete cleaner before pressure washing to remove any persistent stains and start at the highest point as you go down. Always start with the lowest pressure setting if you are cleaning the platform for the first time or using a new machine. Pressure washers are loud, water and other debris can splash back on your face, and you'll be stepping on slippery, soapy water.
There's no doubt that electric pressure washers at 1300 to 2300 psi can wash a concrete inlet, but they'll take longer. It is necessary to adjust the psi of the pressure washer to a proper setting before using it to clean a certain surface. Once you decide to buy a pressure washer for your home or for any other purpose, knowing how strong your pressure washer should be is an essential first question. Low initial costs and favorable prices make it easy to earn money with the power washing business.
Once the proper pressure is adjusted, the flow rate determines how quickly contaminants are removed from the surface. The household pressure cleaner can be compared to a garden hose in terms of performance compared to industrial pressure cleaners. In general, to clean concrete, a pressure washer with a pressure of at least 3000 psi and a flow rate of 4 GPM is recommended. The high pressure produced by a pressure washer can easily cut meat and cause very serious injuries.