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v � <br /> Infiltrator IM- and TW-Series Septic JANUARY2014 <br /> Tank General Installation Instructions �N F I LT RATO R� <br /> � tanks <br /> BEFORE YOU BEGIN points provided at each of the inlet and outlet ports according to the applicable <br /> Infiltrator Systems'tanks must be installed according to state and/or local Inlet and Outlet Hole Locations section of this document.The inlet and outlet <br /> regulations,which supersede the manufacturer's installation instructions. may be drilled on either the sides or ends of the tank,as required based on <br /> If unsure of the installation requirements for a specific site,contact the health applicable codes and site conditions` <br /> department or permitting authority.The IM-Series referred to in this document *Indiana,Kentucky,Oregon,West Virginia,and certain Florida and Texas <br /> includes the IM-540,IM-1060,and IM-1530 tanks.The TW-Series includes the tanks are factory-drilled. <br /> TW-1250 and TW-1500 tanks. 3.The gaskets supplied with the tank are compatible with Schedule 40 and SDR <br /> AWARNING:IMPLOSIONS MAY CAUSE SERIOUS INJURY 35 pipe using a 5-inch-diameter(125 mm)hole saw with IM-Series tanks,and <br /> Follow Infiltrator Systems Inc.vacuum test instructions a 5'/a-inch-diameter(133 mm)hole saw with TW-Series tanks. <br /> 4.Install the rubber gaskets at the inlet and outlet. <br /> ' " ' ' S.Using all four of the tank's integral lifting lugs,lower tank into excavation. <br /> ❑Infiltrator tank ❑Shovel 6.Slide the inlet and outlet pipes'through the gaskets.Soapy lubricant may <br /> be used to slide the pipe in. <br /> ❑Access port lid(s)* ❑Level *For North Carolina,the inlet pipe shall be a straight pipe with no tee. <br /> ❑10 screws per lid' ❑5-inch-diameter(125 mm) 7. Horizontally position the tee 1'/z inches(40 mm)from the access port rim, <br /> ❑2 inlet/outlet gaskets hole saw(IM-Series only) allowing the tee to fit into the recess in the access port lid(see detail). <br /> (included) ❑5.25-inch-diameter(133 mm) 8,Install lids and risers(see Installing Risers section)as necessary.Rotate lid <br /> ❑Inlet/outlet tees` hole saw(TW-Series only) over access opening until it indexes to tank and drops into position. <br /> ❑Tape measure ❑Util ity kn ife POSITON TEE 1 5"in(40 mm) <br /> ❑PVC I Q lue with rimer ACGESSPORTRIM `FROMPORTRIM <br /> ❑Pipe,risers,etc. P P 9 P <br /> ❑Socket wrench `tee and lid inclusion varies by cnsKer <br /> ❑EXCaV2YOf state/province ACCESS <br /> OPENING <br /> LID <br /> INSTALLATION SITE SELECTION •^NK W^��— TANK WLETTEE <br /> (IM-10605HOWN) INTERIOR (TYPICAL) <br /> 1.Do not install the tank in vehicular traffic areas.The tank is designed for <br /> non-traffic applications. <br /> 2.The allowable soil cover depth is 6 to 48'inches(150 to 1,POO Illlll�. ��h540,IM-10fi0,ANDIA41530 55in(7,375mm) <br /> '18-inch(450 mm)max,in Florida for Cat.3 IM-and TW-Series tanks; Tw+aso�,orw-,soo 5,���,,z,5 mm� � <br /> 48-inch(1,200 mm)max,in Florida for Cat.4 IM-Series tanks;36-inch ;�i i`�`�i� � � � � ,,��: <br /> (900 mm)max.in Massachusetts,New Hampshire,North Carolina,and Oregon. <br /> 3.The tank shall not be installed where the subsurface water level outside the tank >` �µ�°°°�^� ( � <br /> xcnanHEw i : <br /> exceeds the height of the outlet pipe saddle.Follow Table 4 guidelines. ' � aEf��E <br /> EXCAVATING AND PREPARING THE SITE . ,� 1 � <br /> � <br /> 1.Unless buoyancy control measures are required,the excavation width and �� �� T,, ����%'��' <br /> length should be 18 to 36 inches(450 to 900 mm)larger than the tank on each ,,,,,,,,,,,,,,,� ,,,�,,,,,,�.��r, <br /> side or sized as necessary to ensure proper backfill compaction,as outlined <br /> in Steps 5-10 of"Backfilling the Tank"in this document.See Infiltrator IM- BACKFILLING THE TANK <br /> and TW-Series Tank Buoyancy Control Guidance document,available online <br /> at www.infiltratorsystems.com,for specific excavation requirements when Note:Infiltrator tanks do not require filling with water prior to backfill <br /> installing buoyancy control measures. placement.Water filling and backfilling to the tank mid-height is required <br /> 2.Excavation depth shall account for the height of tank(55 inches(1,375 mm) if the tank is left in either an open or backfilled excavation that may fill <br /> for the IM-Series tanks and 51 inches(1,275 mm)for the TW-Series tanks). with water from rain or other sources. <br /> Also account for 4 inches(100 mm)of bedding(if required)and cover depth 1.Backfill with suitable native soil(max.3-inch(75-mm)stone diameter).If native <br /> (permissible cover depth is 0.5 to 4 feet(150 to 1,200 mm)of soil). soil is unsuitable,replace unsuitable fraction with suitable soil.If suitable soil is <br /> Note:If the water level outside the tank exceeds the height of the outlet not locally available,contact Infiltrator Systems for assistance. <br /> pipe saddle,tank structural integrity may be compromised.Follow 2.Suitable soil shall include soil textural classes defined in the United States <br /> Table 4 guidelines. Department of Agriculture soil triangle.Suitable soil textural classes are based <br /> 3.Inspect bottom of excavation to verify suitability of native soil for tank on the tank installation depth,as measured from finished grade to the top of <br /> installation.Soils with large,protruding,or sharp stones or other similar objects tank. <br /> that may damage the tank are not suitable. a)For a tank soil cover depth of 0.5 to 2.0 feet(150 to 600 mm),suitable soil <br /> 4.The tank ma be installed either in suitable native soil(see Backfillin the Tank textures include: <br /> Y l 9 100%CLAY KEv: <br /> section)or a minimum 4-inch(100 mm)layer of well-graded granular soil having 0 u�s�;,a„e <br /> particles less than 3 inches(75 mm)in diameter,or maximum 0.5-inch(13 mm) �s�nab�a <br /> � �� Suitable it dllatant <br /> diameter crushed stone. <br /> 5.Create a uniform,compacted,level surface to ensure that the bottom of the ao p Arkansas only <br /> For sites with greater than 50%native <br /> tank is evenly supported.Verify that the installation surface is flat. o ��qY ao day soil,backfill sha�be sepUc gravel <br /> c�.ia ee�ai <br /> or similar angular stone,sized 1/2-inch <br /> �nokeagemo�.en to1-1/2inches. <br /> Surlace Runofl � <br /> TanM BuAalOeptn V/���j�, <br /> 6(15R mm)MinYrum %������. <br /> ' ' ' <8'(1.319 mm)Minmum \ <br /> ��� Percen�CL�� 5o PercentSllT <br /> /� Md10,MA-1080 nnE IIAISJO:SS In(13)5 mm) v,�yT SAN C y <br /> 1NL1250NnJ1NF1500'.511n(1.2i5mm) �✓.��� <br /> FI�aBeUEinBaVth(RFeyuireEl %�� �V <br /> y�yj � � .'.�A 51 T LAV <br /> ConpscteE SuileNe Ne�rve So1 or � LOAM <br /> GnnubiMero�41 � , SAN CLA <br /> mu DapIF Varles by <br /> i i i?'�i\i�i ''i'�i'ii"i?�l�\'i i i i<>'ii�T'"�T'"�?�\�\/i,�i� ,�,o';;"zro'i::�a p �an� <br /> ���T�/����\��\l�\�\�\��//Y���/`�i\�������\\1' SAe Selenbn nbore. LOAM <br /> � W <br /> INSTALLING THE TANK �� ""°"`°"" S�� <br /> . . �,_ �.�.. <br /> 1.Inspect the tank for damage before installation. �°°�S^"o °AN $"" , ���s��T <br /> 2.If the tank inlet and outlet penetrations are not drilled,drill holes using the drill e��_�,������� ,�,. ,o,� <br /> - .�.. :�� <br />