Patent ID: 7497946
Filing Date: 2009-03-03
Classification: C02F,E03F

Abstract:
1. A subsurface drip wastewater disposal system comprising: a wastewater tank having an inlet for receiving wastewater; a pump adapted to pump wastewater from the tank; a discharge line attached to the pump to receive wastewater from the pump; and a discharge filter attached adapted to receive wastewater from the discharge line, wherein a first portion of the received wastewater flushes the filter and returns to the wastewater tank through a filter return line, and a second portion of the received wastewater is discharged to a supply manifold; a first flow restrictor attached to the filter return line; a plurality of emitter lines fluidly connected to receive flow from the supply manifold, each emitter line having at least one emitter, wherein a portion of the flow through each emitter line is discharged through the emitters; a return manifold fluidly connected to receive flow from the plurality of emitter lines; and a return line fluidly connecting the return manifold to the tank, wherein the return line includes a second flow restrictor, and further wherein the size of the first and second flow restrictors is fixed.