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Thread: How would you clean these sandstone pavers?

  1. #1

    How would you clean these sandstone pavers?

    This is a newly installed sandstone patio. It's part of a renovation, so it's very dirty from all the foot traffic. Most of the stains are just dirt/mud. I don't see any algae or mold or anything like that. Any suggestions on what to use on this?

    I have a 4gpm/4000psi machine. I know sandstone is soft and can be damaged by high pressure, so I don't want to drill this stuff. Could I use a surface cleaner with larger orifice tips and use that at lower pressure? If wanding is better, what would be a safe pressure? Or should I avoid all pressure and scrub with a brush, then rinse with ball valve or something?

    2013-06-17 09.46.53.jpg2013-06-17 09.46.49.jpg
    Caleb Wininger
    Lake State Cleaning, Inc.
    Oakland County, MI
    248.910.2500
    www.lakestatecleaning.com

  2. #2
    If there's no need for chems and its just dirt why not just get out a mop and bucket and rinse
    Urban Tek Pressure Washing LLC
    Silverton and Salem Oregons
    Premier Pressure Washing Services
    www.urbantekpw.com

  3. #3
    I wouldn't waste time with a surface cleaner. A #20 orifice with a sweeping washing motion should do the trick.

  4. #4
    the dirt is pretty stubborn. it's been tromped pretty deep. I dont think just mopping and rinsing will work. I did a small test spot with a 2504 and it cleaned up good, whereas a strong rinse with my ball valve didn't clean deep enough. i'm nervous about using that 2504 on the entire surface, I'm afraid it will leave lap marks. should I just test largest nozzle to smallest in my kit till I find the softest one that will still clean deep enough?
    Caleb Wininger
    Lake State Cleaning, Inc.
    Oakland County, MI
    248.910.2500
    www.lakestatecleaning.com

  5. #5
    Prestige Member
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    Your answering your own question the answer will be if you have a large enough nozzle in your kit.
    Hal Brown
    Sophia Nc 27350
    www.AbvPressureWashing.com

  6. #6
    Quote Originally Posted by kiloman7 View Post
    Your answering your own question the answer will be if you have a large enough nozzle in your kit.
    ok, thanks. I thought that would be a good plan, but I've never done sandstone before so I thought I would get some advice first.
    thanks again.
    Caleb Wininger
    Lake State Cleaning, Inc.
    Oakland County, MI
    248.910.2500
    www.lakestatecleaning.com

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