Drainage line improvements

Claim 1

IN A DRAINAGE SYSTEM FOR SEWAGE EFFLUENT COMPRISING A DRAIN LINE BURIED IN PERCOLATING SOIL, SAID DRAIN LINE COMPRISING A PLURALITY OF SERIATELY DISPOSED CERAMIC CONDUITS, EACH HAVING A LONGITUDINAL GROOVE OPENING RADIALLY INWARDLY INTO THE INTERIOR OF SAID LINE ALONG THE BOTTOM THEREOF, LIQUID PERMEABLE JOINTS CONNECTING SAID CONDUITS TOGETHER AND PROVIDING OPENINGS IN SAID LINE FOR DELIBERATELY PERMITTING SEEPAGE OF SAID EFFLUENT INTO THE SURROUNDING SOIL AND MEANS COMPRISING A MATERIAL DISPOSED IN THE LONGITUDINAL GROOVE OF SAID CONDUITS FOR REACTION WITH SAID SEWAGE EFFLUENT TO PRODUCE A SOLUTION WHICH IS TOXIC TO BACTERIA IN THE EFFLUENT, SAID SOLUTION BEING FLOWABLE WITH SAID EFFLUENT FOR INFILTRATION INTO THE SURROUNDING SOIL TO INHIBIT FORMATION OF BACTERIA PRECIPITATED IRON COMPOUNDS AND THEREBY PREVENT CLOGGING OF SAID LINE AND THE SOIL SURROUNDING SAID LINE BY SAID BACTERIA AND SAID COMPOUNDS.