The TIGG Treo multi-media filtration system removes suspended solids from water. What makes this three-vessel multi-media liquid filtration system unique is that it eliminates the added expense of a backwash pump and backwash water holding tank. Not only does this water filtration system reduce costs, it saves on valuable real estate at the job site. Instead of a backwash holding tank, the TIGG Treo uses the effluent from two of its vessels to flush the third.