Squeeze a generous dollop of liquid dish soap into the bucket. Fill the bucket with an inch or two of water to mix with the soap. Dip the soft-bristle brush in the soapy water and then scrub the mats, paying extra attention to any stains and scrubbing in all the grooves.
What household product can I use to clean my car carpet?
Mix a solution of white vinegar and water in equal parts in a spray bottle and add a couple of tablespoons of dish soap. This is one of the best and cheapest ways to eliminate stains. Spray the solution on an area and scrub it into the carpet with a clean cloth or sponge.