Hey Ron, My name is Bill and I own Smith window Washing in MESA. I have my first pressure washing job residential it’s a pooldeck and it has a small spot with some hard water spots/stains the deck is concrete and next to grass and I don’t want to use anything on it that might potentially harm the grass. I have MDR I use on windows says it’s good on concrete? My unit is cold water. Thanks for any info.
[COLOR=black][FONT=Verdana]I’m not familiar with MDR on concrete; I will assume it will remove it. But the efflorescence will leach back within days. You might use a chemical that will prevent the efflorescence from coming back.[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]If its a Cool deck be very carefull, old decks will fall apart. test the areas before applying or using any pressure. [/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]Keep in mind use low strenghts of chems working higher if needed. [/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]Keep hot water pressure hose off Grass, it will kill the grass…[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]If your worried about plants, water them first…spray them down after incase. Tarp if needed[/FONT][/COLOR]
