I had to take my comforter into the laundromat b/c my son got sick. The detergent lid wasn't on correctly and spilled along the edge of the weather mats. It's concentrated so I didn't add water b/c I knew it would foam. I've tried wiping it up as much as possible but there is a demarcation line in the tan floor. Thankfully it is clear detergent and not blue. No one will notice but me but I know it will continue to get worse once dirt gets attracted to the detergent.