The easiest method to clean Sandstone is that has a very hot h2o sponge and stone cleaner. Will not use vinegar, ammonia, lemon, or orange for cleansing Sandstone as They may be abrasive and destruction the surface area. Filter Socks are mesh tubes that do the job to trap pollutants https://sandstonerepointingnorths85061.newsbloger.com/26925754/an-unbiased-view-of-sandstone-repairs-north-shore