Mortar Haze on Tennessee Crab Orchard Flagstone
by Mary Anne
The mason left a mortar haze all over our new crab orchard flagstone patio. He wants to use muriatic acid and a pressure washer to clean it up, but we are worried about our landscaping (We have flower beds with roses and bedding plants right up to the edges). We've also heard that acid shouldn't be used on flagstone. (He did use a pressure washer with a brush attachment on a corner stone and it left brush marks in the stone, so we're really worried!) We would appreciate any advice before we get into a bigger mess than we already have. Thank you!