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/ <br /> ��.rr <br /> � . . <br /> � - <br /> ,1 , <br /> I. ALL PIPES OTHER THAN PRESSURE PIPE SHOULD <br /> OUTLET TO 8E AT LEAST 4 - INCH DIAMETER. <br /> TRENCH <br /> 2. ELEVATION OF INLET AND SUPPLY LINE TO <br /> ' ' o SUPPLY LINE NEXT DROP BOX MAY BE ADJUSTED UP OR <br /> T O N E X T O O W N F O R D E S I R ED EFFLUENT LEVEL IN <br /> __ OP BOX TRENCH . <br /> � � --� <br /> __ 3. SUGGESTED TRENCH LIQUID LEVEL IS AT TOP <br /> OF TRENCH ROCK IF PERMEABLE SYNTHETIC <br /> FABRIC COVERS ROCK; AT TOP OF OUTLET PIPE <br /> � . �� F� 4 IF HAY OR STRAW COVERS ROCK. <br /> OUTLET TO <br /> TRENCH 4. INVERT OF PIPE FROM PUMP MUST 8E AT <br /> LEAST ONE INCH HfGHER THAN INVERT OF <br /> SUPPLY PIPE TO NEXT DROP BOX. <br /> 5. TRENCHES MAY OUTLET ONE SIDE OR <br /> BOTH SIDES OF DROP BOX. <br /> � <br /> � , <br /> i <br /> � r� r� SLINEY I � SUPPLY <br /> � � ` �� ' i I � LINE <br /> „ <br /> I 2 ; i i � -� I - � <br /> � � i i 2�� � � 1 � <br /> I I <br /> � � I I <br /> i � i i � � � ' T <br /> i �'E-- I � ( I . I � -�- <br /> I i ' j _L1 � � Ll <br /> L_ _ � � � I I � I <br /> � -;- —- 0 U TL E TS TO l-__.L.L _ _i <br /> ' TRENCH ' � OUTLET TO ; <br /> I �/2' OR 2" PLASTIC TRENCH �-- <br /> �-- PIPE FROM P.UMP <br /> DROP BOX FOR PUMPEO EFFLUENI" <br />