Flow divider (10) that includes a slurry receiving compartment (40) and a discharge arrangement having a plurality of discharge apertures (46). The slurry receiving compartment (40) is arranged to relatively uniformly flow a portion of a slurry into each of the discharge apertures (46). The discharge apertures (46) may be arranged linearly and/or horizontally such that the portions of the slurry exits each of the discharge apertures (46) at a relatively even flow rate and feed feed boxes connected to vertically tiered screening surfaces of a screening machine (100).