Water tank baffle

A baffle for a receptacle containing liquid to control surging comprising, in combination, longitudinal and transverse plate members each formed of a polymeric material and each having first and second sides and each having upper and lower edges defining said plate members' height and end edges defining said plate members' length, a first linear slot defined within said longitudinal plate member substantially perpendicularly intersecting said lower edge thereof, a second linear seat defined within said transverse plate member substantially perpendicularly intersecting said upper edge thereof, a first reinforcement insert receiving opening defined in said longitudinal plate member adjacent said upper edge thereof and in alignment with the length of said first slot, a second reinforcement insert receiving opening defined in said transverse plate member adjacent said lower edge thereof and in alignment with the length of said second slot, a reinforcement insert located within each of said openings, said inserts each including a base positioned within the opening in which they are received and four cantilevered fingers extending from said base and said opening in the direction of the slot of the plate member in which said insert is received, said fingers of a common base being parallel and spaced with respect to each other, the spacing between adjacent fingers defining a third slot receiving the other plate member in which said opening is not defined and defining a fourth slot in alignment with said slot of the plate member in which said opening is defined, said slots defined in said plate members being of sufficient length that upon transversely relating said plate members to each other to align said first and second slots and translating said plate members toward each other parallel to said first and second slots said inserts' third slots to receive the other plate member in which said opening is not defined adjacent a plate member edge whereby said inserts' fingers support said plate members adjacent said edges against deformation.