a wet or a damp basement is a breeding ground for mold, umm mold develops within the first 24 to 48 hours and action needs to be taken within this time in order to elimnate mold growth, it is very important, mold can reproduce rapidly unless steps are taken to dry the basement, we need to dry that basement, if we leave the mold to multiply your going to find it growing on your walls, ceilings, and will begin to produce a musky odor throughout the home and in the basement