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2011 purplecode Mound Design <br /> www.SepticResource.com (vers 15,2) <br /> Property Owner: Steven Gerber Date: 8/20/2016 <br /> Site Address: 30 Orono orchard Road N PID: 35-118-23-33-0037 <br /> Comments: Future Site <br /> instructions: � =enter data � =adjust if desired � = computer calculated - DO NOT CHANGE! <br /> >> �5 bedroom Type � Residential System <br /> ?� 750 GPD design flow <br /> 3> Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks <br /> a> 2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) <br /> Tank options: none <br /> s� 1•2 GPD/ft2 mound sand loading rate contour loading rate of 12 req's a min 62.5 ft. long rockbed <br /> 6> 10.0 ft rockbed width 63.0 ft rockbed length <br /> �� 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br /> end feed manifold connection <br /> g� �laterals 61.0 feet long 21.0 perfs / lateral 63 perfs total <br /> (1/2 a perf ineans the first perf starts at the middle feed manifold) <br /> e> 7/32 inch perfs at �1 feet residual head gives 0.56 gpm flow rate per perforation <br /> for this perf size 8 spacing, Et pipe size on line 12, max perfs/lateral= 30 , line#8 must be less --> OK <br /> io) 4.0 doses per day (4 minimum) <br /> �i� 188 gallons per dose (treatment volume) <br /> 2.00 5x <br /> �z� 2.00 inch diameter laterals must be used to meet"4x pipe volume" requirement <br /> 2.00 3x <br /> i3� �feet of 2.0 inch supply line leads to ##### gallons of drainback volume <br /> (Tip: "top feed" manifold to control the drainback) <br /> ia� ######gallons TOTAL pump out volume (treatment+ drainback) <br /> is� feet vertical lift from pump to mound laterals, leads to a: <br /> ib> 36 GPM� ##### feet of head, Pump requirement (note: >50gpm may require an extra 3-6'of head) <br /> i�� 750 gat Dose tank (code minimum) 750 gal Dose tank (design size / LUG req'd) at �gpi <br /> leads to a <br /> �s� ###### inch swing on Demand float, or timed dosing of ##### min ON (confirm pump rate with drawdown <br /> (this delivers Average flow, =70%of Peak design flow) ##### hrs OFF test and adjust as necessary) <br /> i9� 12 inches from bottom of tank to"Pump OFF"float <br /> ?o� ###### inches from bottom of tank to "Pump ON"float, or 12 inches to"Timer ON"float if time dosed <br /> 2i� ######inches from bottom of tank to"Hi Level"float, or ##### inches to "Hi Levet"float if time dosed <br /> 2z> ###### gallons reserve capacity (after High Level Alarm is activated) <br />