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• Lift Tank - Use a 1,500 gallon precast septic tank. Plastic tanks will not work and are specifically <br /> eliminated from this design. Inlet of the tank must have cast in place rubber fittings to create a <br /> watertight seal around the inlet pipe. <br /> • Lift Tank Risers— Use a 24" diameter heavy corrugated pvc pipe. A watertight seal must be <br /> created between top of tank and the each riser. Top of riser should be at an elevation 2-3" <br /> above finished grade. <br /> • Lift Tank Riser Cover— Use 24" diameter fiberglass cover with gasket, Orenco model # <br /> FL24G14 (or equivalent). Do not bury riser cover. <br /> • Screened Pump Vault - Place an Orenco Biotube Screened Pump Vault model #PVU57-18 I 9 <br /> into the lift tank. Allow vault to rest on the inside bottom of the tank. No other pump vault <br /> will meet the specifications of this design <br /> • Lift Pump - Place an Orenco pump model #P20051 I, I 15v, %z hp pump (or equal) into flow <br /> inducer of pump vault. Extend a sch. 40 pvc discharge pipe from the pump up into riser within <br /> I.5' of ground surface, then glue a 90 degree fitting followed a cam lock, followed by another <br /> 90 degree fitting bringing the discharge pipe back down into the tank and then out the outlet of <br /> the tank. The discharge pipe/supply line to the drainfield must not have any low points where <br /> water will be static in the pipe. Create a water tight seal around the discharge pipe and the <br /> opening of the tank. <br /> • �li;;h Level Alarm/Float - Use a an Orenco AI Simplex Control Panel/Level Alarm or equivalent, <br /> high level alarm. Use Orenco #MFAB float assembly or equivalent to operate pump onloff <br /> controls and for high liquid level alarm, and low water/redundant off alarm. Set the float tether <br /> to activate the level alarm should the liquid level of the tank reach the inlet invert of the septic <br /> tank. Place the level alarm inside of the house in a location where the alarm can be heard. <br /> ° Run all wires from the pump and floats through a grommet installed in the riser wall then <br /> through plastic conduit from the riser up to the splice box mounted above ground on a <br /> permanent pole or post or equivalent. Seal opening in riser where wires pass through. <br /> 3 <br />