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i <br />HOUSE ' <br />l <br />� <br />SET_ - BACKS <br />System must be: `+ <br />Tonx LL2 from property Ines <br />from wells <br />�Q from bogs. , <br />Treatment area =from IaKes , = streams <br />Treatment area "Lu � from property lines <br />MNNNoLCS- / VCI`A (0" =' from webs <br />t5iur=HK =&'from bldgs. <br />f m trees <br />y � t 1Sl ro <br />— min. <br />t i <br />Tank f Tonk <br />Drop_ to .-Drop I <br />Min. C to 8' �— <br />htox, i 'to 4 <br />4'to 6"dio. pipe <br />Chamber <br />NOTE : Power supply and switches must be local, <br />weather proof • endosure outside the pumping chc <br />�I ' S <br />grade I <br />PRESSURE DISTRI&MON MOUND SYSTEM <br />SYSTEM DESIGN - MOUND <br />TYPE BEDROOM , Average percolation rate 1r nun./itch ( design .83sq.ft treatment area per gal. of doily sewage flow) c <br />rlStd gal./day x .83sq.ft /gol.(Pill ,t_ sq.ft. of treatment area + 10% =' P sq.ft. (= IOft. width =fe! ft.length of bed area +side skgm run `I -to I xL57- height= 3 <br />Clean rock needed— ,(&jsgj1. treatment area x.I A " depth of rode = &Vicu.ft=27=21N'Lcuyds (3/4 to 2 1/9da. ,includes 2 of rock above pipe) <br />- LI_.- .'->Clean sand fill below rock needed 23a cu.yds. approx. , sandy loam bock fill=!SZcu.yds. approx. , topsoil 6 " . 2 cu.yd. <br />S Number of tanks required Ist tame I n 't Q_gol. , 2nd tank 1000 gal. mrYnms <br />Pumping chamber capacity- 25% of daily sewage flow of 2.-2901.=L=gal+reserve stow¢ of 75gaL/bedroom=�� goi.+pipeDockdronoge— <br />of t =�gal. /IOOli n.ft. of 13:dio. supply pipe, 1°n.ft. needed `L , gal.+ manifold ° `�' ga./IOOlirt.ft of 4-- Ada. pipe, hftneeded n gal. <br />total capacity needed=7)r gal. ( plus area for pump) <br />Distribution arpe ' °"� dw. , L.,: °°n ft. , ram._ dio. perforations 7 ="apart r <br />Pump size Q_ hp. (pumpo* -capacity 12; gal. 4 cycles /day) i <br />Note : When corwructing bed - , trus area should be shaped Note; Distance from treatment area to neighboring welts — <br />to divert run-off from entering treatment area LaI 'A'rt-F -rNI <br />