Structure for leaching fields

Claim 1

A STRUCTURE FOR THE DISTRIBUTION OF EFFLUENT MATERIALS OVER THE TOP SURFACE OF A POROUS PERCOLATING BED, SAID STRUCTURE COMPRISING A PLURALITY OF DISCRETE DISTRIBUTION CHAMBERS NESTED TOGETHER IN ABUTTING RELATIONSHIP ON THE TOP SURFACE OF SAID POROUS BED TO FORM A SUBSTANTIALLY CONTINUOUS HORIZONTAL ROOF OVER SAID BED, EACH CHAMBER COMPRISING A PLURALITY OF SPACED, VERTICALLY UPSTANDING PEDESTALS FOR POSITIONING ON SAID PERCOLATING BED AND FORMING WALLS SUPPORTING A HORIZONTALLY EXTENDING CLOSED ROOF WHICH IS IMPERVIOUS TO THE ADMISSION OF LIQUIDS WHEN SAID CHAMBER IS POSITIONED ON SAID PERCOLATING BED, ADJACENT PAIRS OF PEDESTALS FORMING FLUID PASSAGES EXTENDING THROUGH SAID WALLS ADJACENT THE SURFACE OF SAID PERCOLATING BED AND COMMUNICATING BETWEEN THE INTERIOR AND EXTERIOR OF THE RESPECTIVE CHAMBER, THE WIDTH OF EACH OF SAID PASSAGES AS MEASURED IN THE PLANE OF ITS RESPECTIVE WALL AT THE BOTTOM THEREOF ALONG SAID SURFACE BEING GREATER THAN THE WIDTH OF EACH OF SAID PEDESTALS OF SAID PAIR OF PEDESTALS OF THE RESPECTIVE PASSAGE AS MEASURED IN A CORRESPONDING DIRECTION IN SAID PLANE AT THE BOTTOM THEREOF ALONG SAID SURFACE, THE CORRESPONDING PASSAGES IN EACH ADJACENT CHAMBER BEING ALINGED WITH EACH OTHER WHEN SAID CHAMBERS ARE PLACED IN NESTED RELATIONSHIP TO FORM A PLURALITY OF CONTINUOUS FLUID CHANNELS EXTENDING THROUGHOUT SAID FIELD BENEATH SAID CLOSED ROOF PORTION, WHEREBY SAID EFFLUENT MATERIAL MAY FLOW OUT FROM THE INTERIOR OF EACH SAID CHAMBER THROUGH SAID FLUID PASSAGES AND ALONG THE SURFACE OF SAID BED IN BOTH THE LONGITUDINAL AND LATERAL DIRECTIONS SUBSTANTIALLY UNIMPEDED BY SAID PEDESTALS.