Patent ID: 6120209
Filing Date: 2000-09-19
Classification: E02B,E03F

Abstract:
A method for uniformly distributing effluent within a septic tank drainfield, the method comprising the steps of:placing a septic tank on a tank bed surface within a pit formed for receiving the septic tank;providing a drainfield bed having a bed surface at an elevation operable with the septic tank for permitting effluent emitted therefrom to flow into the drainfield;providing a header pipe section having an inlet port and a plurality of outlet ports uniformly extending along the header pipe section;connecting the inlet port of the header pipe section to an outlet port of the septic tank and transversely extending the header pipe section across the drainfield;aligning the header pipe section at a desirable position for uniformly receiving effluent therethrough, which effluent is emitted from the septic tank;supporting the header pipe section at the desirable position;providing a plurality of corrugated pipe sections, wherein each of the plurality of corrugated pipe sections includes a plurality of perforations in spaced relation longitudinally extending along side wall portions thereof, each of the plurality of corrugated pipe sections further having at least one elongated rib extending radially outward from and longitudinally along a top wall portion thereof;connecting a first end of one corrugated pipe section to one of the plurality of outlet ports of the header pipe section;interconnecting a second corrugated pipe section to the one corrugated pipe section for extending interconnected pipe sections longitudinally along the drainfield bed;repeating the connecting and interconnecting steps for each of the plurality of outlet ports of the header pipe section for uniformly placing the plurality of corrugated pipe sections over the drainfield bed;connecting each end of the interconnected corrugated pipe sections to each other for placing the plurality of interconnected pipe sections in fluid communication;suspending each of the plurality of corrugated pipe sections from their respective at least one elongated rib at a desired elevation for causing effluent to reside along a bottom wall portion of the corrugated pipe sections radially opposing the rib and below the plurality of perforations for permitting a secondary effluent treatment within the bottom wall portion of the corrugated pipe sections; andsecuring the plurality of interconnected pipe sections at the desired elevation for uniformly distributing effluent received from the septic tank throughout the drainfield bed through the plurality of perforations.