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Septic/dosing tank <br /> <br /> Fini~h~d grade <br /> <br />C Top OF tank-lFTlO'* <br /> <br />A Bottom oF invert -2FT <br />O Float ~larm on -4FT 10" <br />E' Plump ~lo~t- on -~T t'1" <br /> Pump ~lo~t o~ -5~T <br /> Bottom o~ t~k -TFT ~" <br /> <br />( TBM ] 000 <br /> <br />Sandffilter <br /> <br /> Bottom oF ~llter +1" <br /> Top off drain rock +7" <br /> Top oF fi~lter sand +~FT 7" <br /> Top of manifold +3FT2" <br /> Top oF drain rook +3FT <br />Top oF filter +4FT <br /> <br />Or.infield <br /> <br />Ni Finished Grade /8~ ~ <br />N~ Bottom of dr~in~i~ld line <br />N3 Bottom of trench -2FTC" <br /> <br />O1 Finished grmde ~" <br />03 Bottom oF ~renoh <br /> <br />Pi Finished grade(~4~ <br />P8 Bottom oF dra£n~td t~ne 1FTB" <br />P3 Bottom of trench <br /> <br /> <br />