momentum is disrupted and a more uniform distribution of liquid through perforations 22 is achieved to demonstrate the effectiveness of the invention a comparison study was conducted three different systems were compared the first system did not contain a v plate instead a horizontal flat perforated plate was installed within the trough to disrupt the flow of liquid from the exit holes of the flow pipe to the discharge holes in the floor of the trough similar systems are described in u s pat no 5 209 875 and u s pat no 5 573 714 the next system contained the v plate of the current invention the final system had the novel v plate and additionally had dividers positioned vertically within the volume of the v plate at locations in between the exit holes of the flow pipe each system was operated at identical conditions with identical liquid the performance of each system was analyzed nine times at three different liquid head depths and with three different discharge hole patterns in the floor of the trough the three different discharge hole patterns are labeled patterns a b and c in each experiment the flow rate of the liquid exiting the discharge holes in the floor of the trough was measured and the percent max min u2212 1 distribution calculation was performed the smaller the percent distribution the more uniform the liquid distribution the data collected is found in the table as the data shows the v plate and the v plate with dividers.