I have tried to use an old 1500 psi unit that I already had to clean a concrete driveway, but just purchased the 3000 psi machine from a home store, and the difference is amazing. Keep in mind that you can always add distance to reduce pressure (back away from the surface), but you can't add pressure that the unit doesn't produce. While the higher pressure might not be necessary for the tasks you are considering, the added cleaning power means you'll get the job done faster with the more expensive unit. The cleaning power is roughly proportional to the PSI rating multiplied by the GPM. it may take you alot longer, but any case, just make sure you wet your vinyl before spraying any cleaning solution on it.Īnd also do not consider mixing any other cleaning solutions with the bleach.good luck! If your home is not that large, you may consider the simple green and a soft bristle brush and just the water hose will be sufficient. let it soak a few minutes also, oh and don't where any decent clothes you do not want to ruin while spraying, they will fade and leave bleached spots if you get it on you.lol, oh yea and have some splash proof goggles on while spraying any mixture from your sprayer, don't need that stuff in your eyes.ok so i want to add.if you use a strong bleach solution, you make fade your vinyl in time.Ģ500 psi pressure washer.anymore pressure than this may cause vinyl damage if you put the tip too closeĪlways try to spray your vinyl from the top down, that is how its designed to shield the water in the first place, although you cant do this in every application, spraying from the bottom up is fine as well don't worry it will dry out.now you may need to scrub a few stubborn areas if your home is really dirty, but if you let the simple green soak enough you may not require any scrubbing. now on the north end of your home, most will collect some algae and mite need more convincing, so if this is a problem an the simple green doesn't take it off, then a mild household bleach solution will probably be your best bet to get that off. spray it on let it soak for a few minutes, and wash it off with the pressure washer. wet the entire surface area of the vinyl with water, and with a pump sprayer, mix you a solution of water and simple green, if its really dirty go with a stronger mixture or full concentrate, its not gonna hurt it a bit. ok with that said this is what i recommend. it ill not be an outstanding amount which on a good day will probably dry within an hour of spraying.

I have been pressure washing my home for 12 yrs, this is my opinion for a larger home like bigger than 2600 sq ft., although all of the comments were correct about the water getting underneath the siding an into the structure.

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