Patent ID: 7681607

Claim:
An apparatus for distributing a liquid comprising: a pump having an inlet and an outlet; a flow control reversing valve fluidly coupled to the inlet and the outlet of said pump; said reversing valve having a first orifice and a second orifice; said reversing valve having a first position and a second position; wherein when said reversing valve is in said first position, liquid flows from said first orifice to said second orifice; wherein when said reversing valve is in said second position, liquid flows from said second orifice to said first orifice; wherein said outlet of said pump is positioned below said reversing valve and said inlet of said pump; a purge valve fluidly coupled to and positioned below said outlet of said pump: a strainer housing coupled to the inlet of said pump; and a strainer basket positioned in said strainer housing wherein said strainer housing is fluidly coupled to said reversing valve.