Waterfall with locking upper and lower lips and an angled extrusion arm combined with a screen

摘要: A waterfall apparatus comprising a water confining base, said base including bottom and plurality of upwardly extending side walls connected to bottom; inlet for providing path travel entering base; outlet an upper lip at least first one outwardly therefrom, lower spaced apart from lip, second walls, therefrom so that positioned within flows between lips downwardly therefrom; flow guiding arm predetermined angle into the inner confines provide inlet, around outlet, being less than 90 degrees; removable screen base.