So, I am doing a house wash across the street from this place, brand new build:
And the foreman calls me over when I had my pw shut off, apparently the owner hired some kid that they use for odd jobs to pressure wash the cobwebs and stuff off the house. He Left his signature in stone. 
Also, I was told he did this all over the brand new pressure treated deck.
The foreman told the owner that the damage is permanent and the stone needs to be refaced. I gave them my card, and I am expecting a call.
My initial thoughts are that I can’t fix it for them, but has anyone had success evening out Zorro marks? I have never tried, and I don’t want to experiment on someone’s property.
Ha! @anon37135677 the jig is up homeboy. I could spot your handwriting a mile away. Time to hang it up ol’ son.
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Ha ha ha, well he is just down the street from me! 
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Those cobwebs didn’t stand a chance against my red tip 
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I’ve got called in for that same exact situation five or six years ago at a fancy property that was just about to host a wedding. Not sure how “technically correct” my approach was, but I walked away a hero:
The marks on the stone were left by somebody who used excessive pressure. It’s a cosmetic thing rather than functional i.e. the stones don’t have half-inch grooves cut in them, rather it’s just that the color of the surface is messed up where the high-pressure water hit the stone. Instead of trying to erase those marks, I used a fan tip to hit ALL the stone with excessive pressure. I had to blend and feather it, just like when power washing most kinds of wood. The whole piece of stone turned darker and the old zoro marks blended right in so as to be un-noticeable.
My job was stone surrounded by stone. You’ve got that wood overhead to be careful of. Anyway, that’s what worked for me. If you’re not good at feathering, I wouldn’t try it.
For anyone wondering what zorro means as it relates to the PW industry I can tell you where not to look, the urban dictionary…
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