Grey Water is the first, “less” harmful kind of dirty water is visibly clear. Although this water may have some debris present, it is mostly transparent. It may also have a slight or mildly foul odor, distinguishing it from clean water.

Water that matches this description; ie: is contaminated but visibly clear is category 2. Grey water often comes from old or malfunctioning sump pumps,

Category 2 grey water can also include water that was at one time clean, but has been untreated for over 72 hours. Water sitting for that amount of time should be treated as grey water due to its potentially harmful contaminants that have incubated over this time. These contaminants include illness causing bacteria, mold, mildew, and other unpleasant organisms.

Although this water does not visual appear to be dangerous, it can be lethal! You must be extremely cautious with this biologically harmful grey water damage.

Grey water that has been left untreated for over 72 hours is classified as black water and ought to be treated as such.