Wicking is a common condition that takes place when the soil has penetrated down into the backing of the carpet/padding and has returned after a professional carpet cleaning. It is very important to have your carpets cleaned every year to prevent this from happening. This is very common with berber carpet or carpet in a moist basement. The longer a stain is present the deeper it goes. Please follow the steps below if this happens.
1. Fill a spray bottle with water or the solution that Healthy Carpets provided.
2. Mist the wicking stain with the solution.
3. Blot the stain with a paper towel or microfiber cloth.
The stain will then wick into the towel.
If the stain does not come out or was never removed after a professional carpet cleaning. It is more likely a permanent stain.
Wicking explained in depth