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' <br /> ' <br /> ' <br /> , <br /> r Secondary Treatment— Effluent Filter - Septage from the clear zone of the septic tank flows <br /> � through an Orenco biotube effluent filter placed inside of the septic tank, attached to the <br /> outlet of the tank. Suspended particles larger than 118" are filter out by the biotube <br /> effluent filter. <br /> ' <br /> y Final Treatment—Screened septage is discharged out of the lift tank through the biotube <br /> ' pump vault to drain field consisting of Infiltrator BioDiffusers. As the septage trickles <br /> through the soil below biochemical processes remove harmful viruses and bacteria. <br /> ' 6) Description of Treatment System - <br /> ' ➢ Septic Tank— Use a I 500 gallon Xei-xes fiberglass septic tank. Inlet and outlet of the <br /> tanks must have cast in place rubber fittings to create a watertight seal around the inlet <br /> ' and outlet pipes. <br /> y Risers — Use 24" diameter heavy corrugated pvc pipe. A watertight seal must be <br /> ' created between top of tank and the each riser. Top of risers shall be 2-3" above <br /> finished grade. <br /> ' y Riser Covers — Use 24" diameter fiberglass covers with gasket, Orenco model # FL24G <br /> (or equivalent). Do not bury riser covers. <br /> � ➢ Effl n Fil r— n r i ffl n fil r 444- <br /> ue t te Use a O enco b otube e ue t te , FTO 36. <br /> ' ➢ High Level Alarm/Float - Use a SJE Rhombus Level Alert or equivalent liquid level alarm, <br /> and low water/redundant off alarm. Set the float tether to activate the level alarm <br /> ishould the liquid level reach the inlet invert of the septic tank. Place the level alarm <br /> inside of the house in a location where the alarm can be heard. Run all wires from the <br /> ' floats through a grommet installed in the riser wall then through plastic conduit to the a <br /> splice box mounted above ground on a permanent pole or post or equivalent. Seal <br /> ' opening in riser where wires pass through. <br /> ' 2 <br /> ' <br />