A few months ago I had a tree limb fall into the back windshield of my '93 Buick. It had been raining and as a result water had been sitting in the backseat floor for a few hours.
I tried drying the floor with regular towels and even set a container of Damp Rid in the center of the floor to absorb moisture. Still did not work enough so I took some Arm & Hammer baking soda, specially designed for kitty litter boxes. I poked a bunch of holes in the front of the box and set it down in the backseat. I even sprinkled some of it onto the wetness. I let the windows down at a reasonable level and hoped it would make the carpet dry.
A few days later I wiped up most of the baking soda but some of it has settled in the carpet. It's kind of crusty to the touch as a result of it mixing with the water.
I haven't gone to any measures to remove it, but I really don't like it being there. It bothers me.
Here is a view behind the driver's seat:
Here is a view behind the passenger's seat:
What you see is white 'powdery' stuff which is the baking soda. Oh yes I tried to vacuum it but it doesn't nudge. By the way both of the floormats were taken out and are ok; it's what below that is the problem. I didn't have anything sitting on top of the carpet for quite a while until this week when I just put the floormats back on.
What Meg's product or makeshift household product of my own will solve this unsightly mess?