These before and after pictures are from a water damage cleanup in Tampa FL. The homeowner's water heater on the second floor had a clog in the drainage line flooding the carpet on the second floor. After the repairs were completed and the water restoration was performed some stains were left behind. This type of soiling is the result of water wicking into the carpet fibers as it dries. It's the same principle as the wick effect in an oil lamp. The wick draws the oil upward to be burned off by the flame of the lamp.
Wicking can happen with carpet. Excess moisture in the back of the carpet gets wicked up to the top of the fibers bringing dirt, soil, and fine material along with it. The result is a blotchy mess on the carpet. The good news is that with proper water damage cleanup it can easily be removed. As long as the cleanup process doesn't include too much moisture, duplicating the same problem as before.
If you're in need of water damage cleanup call Chem-Dry of Tampa FL, we know how to remove this type of soiling while minimizing the risk of wicking. Using Chem-Dry's hot carbonated extraction we can pull the soil from the top of the carpet without over wetting the backing or the pad underneath. Your carpet can be cleaned without having to worry about stains returning do to excessive wetting. That's the chem-dry difference, cleaner, drier, healthier.