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. ' NOTES <br /> . , � OUTLET TO �. ALL PIPES SF10VL0 BE A�T LEAST 4-INGH <br /> TRENC�1 �IAMETER. <br /> INLE'T FROM Z, ELEVATION UF INLET AND SUPPLY LINE TO <br /> SEPTIC TANK NEXT DROP 90X MAY DE AD.JUSTEO UP OR <br /> OR PRE�/�GUS ___ DUWN fOR OF_S�pF:O ��F�LUE:�iI IF.VEL IN <br /> Di�U1' uUX •SVf'PLY LINE 7RENCFI. <br /> 'f0 NEXT <br /> DROP DOX 3. SUGGESTEO TRENCH LIOUID LEVELS� (Al 2 INCHES <br /> �. ABOVE TOP OF OUTLET PIPE IF PERMEAOI.E <br /> OFNOUTLETFP PECIF HAYSOR�STRAW AND �r <br /> BVILDING PAPER COVERS ROCK. <br /> '' 4, INVERT OF INLE7 MUST BE AT L�AST ONE INCH <br /> FIIGIIER THAN INVERT OF SUPPLY PIPE TO <br /> NEXT DROP BOX. <br /> -� -OVTI.ET TO TRENGHES MAY OUTI.ET (lNE SIOE OA 00'T�1 <br /> TftEN<:H 5� <br /> �,iors o� nrroP F3ox. <br /> y-Y.'_".L __ ,�__..a.- �-----••i f �- �-..._���. <br /> Y� <br /> T i SUPF�Y i � -INIEI' <br /> ' f ' � i�. <br /> __�, �N� � i � �7._ LINE i � � �� - SUFi��Y LINE <br /> i <br /> � � __...._��L_ � � i � i / <br /> 2 I �� � 1 - <br /> ��•. T � _.._ -,-; ;, <br /> , � , „ <br /> i -'1'- --OUTLETS-�._. _'�� �~. <br /> � � TO TkENCl1 � � •OUTLET TO <br /> `-----•-- --' �----•--� TRENCH <br /> DROP BOX ' <br /> GRAVELLESS TRENCH CONSTRUCTION DETAILS <br /> 1 1/2" Inspec!i��n <br /> � Inlet Pipe to Next � 1/2 Male Well <br /> Drop Box Adapter <br /> 12" Soli Backfill <br /> :� � <br /> Corrugated Tubing Covered <br /> with Geotextile F�bri <br /> Drop E3ox <br /> Trench Length = up to 100 Feet <br /> Ovortill to A11ow NpTES: 1. Boltom ol trench must be level. Top <br /> tor Settling ol tubing must be level. <br /> Soil �2• ol Soil 2. Scarily tronch bottom �nd sidewalls <br /> � Backfill � g8cklill et les�sl 12 incl�es abore trench bottom <br /> 24" ; � <br /> , , to expose natural soil. <br /> ' ' 12" <br /> '�li�__ _ '_� 3. For proprictory products consutt <br /> Noles Located manufacturers perlormance crileria. <br /> 24 at 4 and <br /> 8 O'Clock <br /> J Figure D-33 <br />