Patent ID: 7087158

Claim:
Filtration equipment comprising: a filtration tank body having a water discharge mouth on an upper side portion and a water supply mouth on an upper face side; a partitioned draining board disposed inside a lower portion of the filtration tank body; a bulkhead disposed vertically inside the tank body so as to define a water supply space and a filtration space; and a plurality of filtration boxes removably secured, in parallel, inside the filtration space and supported by the partitioned draining board, wherein each filtration box is disposed so that water runs from a bottom face side to an upper face side of each filtration box so that flowing water runs from the water supply space through the lower portion of the filtration tank body and then through the plurality of filtration boxes before being discharged at the water discharge mouth, wherein the plurality of filtration boxes includes three independent filtration boxes, and the three independent filtration boxes are disposed in a main filtration box located within the filtration space, wherein the main filtration box is divided into three compartments and each compartment is dimensioned to receive one of the three independent filtration boxes, a plurality of projected engagement bodies are disposed on a lower face side of a cylindrical discharge body to form the water discharge mouth, wherein when the plurality of projected engagement bodies engage a reinforcement material of an upper portion of a water tank; and the filtration tank body is connected with the water tank.