how would you takle this?

Discussion in 'Pressure Washing' started by jonjetting, Apr 14, 2016.

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  1. jonjetting

    jonjetting Member
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    I'm assuming the yellowish stone is limestone, what type of stone is the reddish stuff?
    How would you guys tackle this? tried a little bit of pressure and it started taking to much of the surface off for my liking. Any help much appreciated!

    Cheers
     
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  2. jonjetting

    jonjetting Member
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  3. sllab

    sllab Active Member
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    Use a soft-wash set up.

    Basically spray a hypo and surfactant mix onto surface and let it dwell then low pressure rinse off. Will need to be careful not to let the hypo sit on the tarmac - wash it off the tarmac immediately.
     
  4. jonjetting

    jonjetting Member
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    Thanks for reply! I've read somewhere that you shouldnt use hypo on natural stone as there might be iron veins in it and it'll oxidise and leave bad rust marks?
     
  5. sllab

    sllab Active Member
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    Always test on a small inconspicuous area first. ;)
     
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