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. . ��,��� � .. <br /> .�,� ��:��� <br /> , <br /> 20�1 purplecode Mound Desi n � <br /> ' � www.SepticResource.com (vers 14.2) <br /> Property Owner: M and M Date: 3/22/2016 <br /> Site Address: 4220 Chppewa Lane, Orono 3111823420012 <br /> Comments: <br /> instructions: � =enter data � = adjust if desired � = computer calculated - DO NOT CHANGE! <br /> �� �5 bedroom Type �I Residential System <br /> 2� 750 GPD design flow <br /> 3� No Garbage disposal or 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/ft� 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 rockbedlength <br /> �> 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br /> end feed manifold connection <br /> 8) �3 laterals 61.0 feet long 21.0 perfs / lateral 63 perfs total <br /> (1/2 a perf ineans the first pert starts at the middle feed manifold) <br /> 9� 7/32 inch perfs at �feet residual head gives 0.56 gpm flow rate per perforation <br /> for this perf size F�spacing, �t pipe size on line 12, max perfs/lateral = 30 , line#8 must be less --> OK <br /> �o� 5.0 doses per day (4 minimum) <br /> >>� 150 gallons per dose (treatment volume) <br /> . 1.50 5x <br /> i2� 2.00 inch diameter laterals must be used to meet"4x pipe volume" requirement <br /> 2.00 3x <br /> is> 40 feet of 2.0 inch supply line leads to �7 gallons of drainback volume <br /> (Tip: "top feed" manifold to control the drainback) <br /> ia� 157 �allons TOTAL pump out volume (treatment+ drainback) <br /> �s> 8 feet vertical lift from pump to dispersal area, leads to a: <br /> i6� 36 GPM� 15 feet of head, Pump requirement (note: >50gpm may require an extra 3-6'of head) <br /> i�� 1500 gal Dose tank (code minimum) 1500 gal Dose tank (design size / LUG req'd) at 36.80 gpi <br /> leads to a <br /> ta) 4.3 inch swing on Demand float, or timed dosing of 4.4 min ON (confirm pump rate with drawdown <br /> (to detiver Average ftow, 66%of Peak design flow) 7.2 hrs OFF test and adjust as necessary) <br /> 19) 12 inches from bottom of tank to"Pump OFF"float <br /> zo� 16 inches from bottom of tank to"Pump ON"float, or 12 inches to"Timer ON"float if time dosed <br /> 2i� 19 inches from bottom of tank to"Hi Level"float, or 29 inches to"Hi Level"float if time dosed <br /> zz) 801 gallons reserve capacity (after High Levet Alarm is activated) <br />