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r <br /> r � ' � <br /> 2015 purplecode Mound Design <br /> www.SepticResource.com {vers 12.6) <br /> Property Owner: Wooddale Builders Date: 4/2b/2015 <br /> Site Address: Lot 1, Blk.1, Graham Hill, Orono p�p; <br /> Comments: <br /> instructions: � = site specific input � =adjust if desired � =self-calculated (DO NO7 ADJUST) <br /> �� �5 bedroom Type � Residential System <br /> 2� 750 GPD design flow <br /> 3> No Garbage disposal ar pumped to septic <br /> a> 2500 Gal Septic tank {code minimum} 2500 Gal Septic tank {design size / LUG req'd) <br /> Tank options: none <br /> s> 1.2 GPD/ft2 mound sand loading rate <br /> 6> 10 ft rockbed width 62.5 ft rockbed length <br /> �> 3.0 ft latera!spacing 3.0 ft perforation spacing (maximum of 3 for both} <br /> end feed rrtanifold connection <br /> g) �laterals 60.5 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 /> 9� 1/4" inch perfs at �feet residual head gives 0.74 gpm flaw rate per perforation <br /> for this perf size Fz spacing, �x pipe size on line 12, max perfs/lateral= 25 , tine#8 must be less --> OK <br /> ia� 4.0 doses per day (4 minimum) <br /> >>> 188 gallons per dose (treatment volume} <br /> iz� 2.Oa inch diameter faterals (or smaEler) will meet"5x pipe volume" <br /> 2.00 inch diameter laterals (or smaller) must 6e used to meet"4x pipe volume" requirement <br /> 2.00 inch diameter iaterals (or smaller) will meet"3x pipe volume" <br /> i3y 25 feet of 2.0 inch supply line leads to �gailons of drainback volume <br /> (Tip: "top feed"manifold to control the drainback) <br /> ia� 192 gallons 70TAL pump out volume (treatment+drainback) <br /> is> 6 feet vertical lift from pump to dispersal area, teads to a: <br /> i6} 47 GPM C� 13 feet of head, Pump requirement (note: >SOgpm may require an extra 3-6'of head) <br /> ��� 1250 gal Dose tank (code minimum) 125� gal Dose tank (design size / LUG req'd} at 20.00 gpi <br /> leads to a , <br /> is� 9.6 inch swing on Demand fioat, or timed dosing of 4.1 min ON (confirm pump rate with drawdown <br /> (to deliver Average flow, 66%of Peak design#low) B9 hrs OFF test and adjust as necessary) <br /> i9� 12 inches from bottom of tank to "Pump OFF"float <br /> 20� 22 inches#rom bottom of tank to"Pump ON"fioat, or 12 inches to'Timer ON"float if time dosed <br /> zi� 25 inches from bottom of tank to"Hi Level"float, or 35 inches to"Hi Level"float if time dosed <br /> zz� 750 gallons reserve capacity {after High Level Alarm is activated) <br />