FUNCTION: Used in packing house slaughtering areas. Consists of two individual drains. Slotted grate drain permits
drainage of animal blood to separate storage tank while adjacent drain connected to sewer is covered by solid ground joint
plug. When area is to be washed down, the solid plug is put on the blood drain and the slotted grate on the sewer water
drain, thus water used in the cleaning operation will be directed to sewer and will not enter the blood storage tank.