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NOTE: <br />1. <br /> <br />3~ <br /> <br /> M~k~ION COIINTY BUILDING INSPECTION ON-SITE SEWAGE <br /> <br /> (for s~gle f~ily dwelling only) <br /> <br /> Nothin~ in the~e ~p~ci~ication~ shall ~ con~trued to set aside <br /> app~icmble building, pluming, electrical or o~er codes. <br /> <br />T~K (Re,er to 0~ $40-71-~20(7) and 340-73-0~0] <br /> Constructed of concrete, fiberglas~ o= o~h~r non corrosive <br /> material; d~fgned and r~inforced to wlth~tand the load~ imposed <br /> upon the top, wal~s and bottom. <br /> Minimum li~i~ capacity ~qual to the projected daily ~wage flow <br /> (t~ically 450 gallons) as meas~ed from the floor o~ the tank <br /> th~ invert of <br /> Provide a water tight riser and manhole cover extending to or <br /> above finished grade. The manhole cover shall be durable, odor <br /> tight and ~ecur~ly fastened with a minimum 1~" inside hori~ontal <br /> mmasurement. <br /> Constructed watertight with all Joimt$ in concrete secti0uz <br /> meale~ with butyl rode caulking, all grouting done with <br /> 1lc, adhesive type cement and al~ u~ility pa~age~ sealed. <br /> (Manufacturers responsibility) <br /> I~stalled on a stab~e~ level base. <br /> <br />Weighted with antibuoyance device where needed to prevent floata- <br />tion. <br /> <br />[Refer to OAR 340-73-055] <br /> <br />Motors shall be continuous duty with overload protection. <br />Impellers of bronze, cast iron or other approved materials. <br />Capable of passing 3/4 inch solid sphere. (except when placed <br />within screen) <br />Provide easy, readily accessible means of electrical disconnect. <br />Provide and secure a noncorrosive (polypropylene rope) lifting <br />device as a means of removal for servicing. <br /> <br />CONTROLS [Refer to OAR 340-73-055] <br /> <br /> 1. Level control by sealed mercury float switches with a minimum <br /> mercury tube rating of 12 amp. at 115 volts A.C. <br /> 2. Switches installed so %ha~ not more than 20 percent of the <br /> projected daily sewage flow is discharged each cycle (typically <br /> 90 gallons). <br /> 3_ An audible and visual, high Water level alarm with manual silence <br /> switch needs tO be located in or near the building served by the <br /> pump. The alarm float is installed so that 1/3 or more of the <br /> tank volume remains, for storage from the alarm "0N" level (typi- <br /> cally 150 gallons or more). <br />4. Level controls are set on a noncorro~lYe, nonbuoyant, readily <br /> accessible device separate from the pump discharge piping (see <br /> diagram). All wiring shall be secured with nylon ties. Avoid <br /> tape, wire ties and loose wires and cords. <br />5. An electrical permit, inspection and approval by the Marion <br /> County Building Inspection electrical inspector is required for <br /> <br /> <br />