We have Mannington Luxury vinyl flooring (which we love!) in the kitchen and living room. The only problem with this bottom - we have a platinum grade Coral Bay Seashell, if that matters - are tiny craters in the textured surface. They offer excellent grip on wet roads, but over time, especially in the kitchen, they clog with mud. Regular cleaning does not remove dirt from craters, so it accumulates over time. I have tried many materials and methods to remove it but the only thing that has…