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Best Posts in Thread: How to Clean Concrete Driveway

  1. gerry_bc

    gerry_bc DI Forum Adept

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    Pat , a mixture of muriatic acid and water should work, I used it on the clay pavers at my pizza place when they got moldy. Use about 1/5th gallon of acid to 1 gallon of water. Hose the area first with water and work the solution in with a hard stubbly brush (available at city hardware, white bristles and blue plastic). Do about a 10ft by 10 ft area then rinse it off. Continue until done, should work great.. Good luck. I can come help you if needed..09082117077
     
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    gerry_bc, Jan 6, 2015
    #5
  2. sntmig

    sntmig DI Forum Adept

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    my vote is pressure washer...dont bother to buy the small cheap model..takes far too long.. Hire someone with a 'commercial type' to do your driveway/sidewalks/rocks...Miguel
    Chlorine,acid is not so good for anything living...
     
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    sntmig, Jan 6, 2015
    #6
  3. midway

    midway DI Member Veteran Navy

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    I use a pressure washer on mine. If I were living there I would pay someone else to use a pressure washer while I had a beer.
     
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    midway, Jan 6, 2015
    #7
  4. denpet

    denpet DI Senior Member Highly Rated Poster Blood Donor Veteran Air Force

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    I take a good scoop of calcium hypochloride (for my pool) in water and spray. Carful so you don't get it where you don't want.
     
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    denpet, Jan 6, 2015
    #4