Drip irrigation emitter

A drip irrigation emitter comprising:

• a tubular housing having an internal chamber, said internal chamber terminating at an upper end and a lower end, said lower end to be connectable to a source of pressurized water;
• a plurality of valve chambers formed within said tubular housing and located within said internal chamber, each said valve chamber has a valve seat, each said valve seat being located at said upper end of said internal chamber, each said valve seat including at least one minute flow passage, a single said valve chamber connecting with a single said valve seat, a ball mounted within each said valve chamber with there being a separate said ball for each said valve chamber, each said ball being captive within its respective said valve chamber, each said ball being movable between its respective said valve seat to a position spaced from said valve seat, when a said ball is spaced from its respective said valve seat a substantially increased flow of water is permitted through said valve chamber, with a said ball in contact with a said valve seat a reduced flow of water occurs through said minute flow passage, a water outlet passage connected to said valve seat with therebeing a separate said water outlet passage for each said valve seat;
• a cover mounted on said housing at said upper end, said cover having a plurality of openings, said cover having a plurality of closed chambers, a said opening providing access from the ambient into a said closed chamber, each said opening defining an annular knife edge wall surface;
• a separate distribution conduit connected with each said opening, each said conduit terminating within a said closed chamber, each said conduit having an exterior surface, each said conduit adapted to receive water from its respective said closed chamber and conduct such to be deposited at a point spaced from said tubular housing, said annular knife edge wall surface of each said opening tightly digging into said exterior surface of its respective said distribution conduit;
• and
• each said water outlet passage connecting with a said closed chamber, each said closed chamber being substantially larger in size than its respective said water outlet passage, whereby a particle of foreign material that somehow has passed through said water outlet passage will be comfined within said closed chamber and not clog the respective said distribution conduit.