Water treatment apparatus and method of use

Apparatus for treating water comprising:

• a container,
• a water inlet arrangement having a plurality of water inlet holes positioned along the length thereof for water entry into the container at positions along said length, the water inlet arrangement operable to cause flows of water through the water inlet holes and into the container having the same flow rate along the length of the water inlet arrangement,
• a plurality of water exit units positioned along the length of the container, the water exit units having respective outlet orifices at least partially immersed in water contained in the container and positioned along the container length for enabling water outlet from the container at positions along the container length, each one of said plurality of water exit units having
• a generally horizontal pipe extending along a longitudinal axis that is transverse to the container length and in a plane perpendicular to the container depth,
• said horizontal pipe terminating at a first longitudinal end at a first orifice and at a second longitudinal end at a second orifice of like geometry to said first orifice, each of said first and second orifices configured to draw off water from said container, and
• a common outlet intermediate between said first orifice and said second orifice, said common outlet draining liquid from said horizontal pipe,
• wherein respective parts of each of said first and second orifices define a lower boundary of a common layer of the water drawn into said water exit units from said container, and wherein respective second parts of each of said first and second orifices define an upper boundary of said common layer of the water drawn into said water exit units from said container,
• a clarification zone intermediate the water inlet arrangement and the water exit units,
• wherein the water inlet holes and the outlet orifices are positioned to cause a gravity induced, balanced, even flow of water across the container from the water inlet ports, through the clarification zone to the outlet orifices,
• each of the water exit units having a respective height adjustment mechanism for differentially adjusting heights of certain ones of the water exit units relative to other of the water exit units whereby to maintain said balanced, even flow regardless of tilt of the container.