Any time you’ve stacked your wall to the specified substantial, fill within the backspace with drainage gravel and tamp it down. Sandstone is really a solid block connected to sand that comes in two color variants, the opposite becoming pink sandstone. Typical sandstone is commonly present in deserts and seashores. https://collinwrlfw.blogdeazar.com/31184336/top-latest-five-sandstone-retaining-wall-blocks-urban-news