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2011 purpkcode Mound Design <br /> www.SeptcResource.com (vers 15.2) <br /> Property Owner: NOR-SON Date: 9/6/2017 <br /> Site Address: 540 Willow Drive S PID: 0311723320018 <br /> Comments: New primary <br /> instructions: enter data =adjust if desired C� = computer calculated- DO NOT CHANGE! <br /> )) bedroom Type i J Residential System <br /> 2) 750 GPD design flow <br /> 3) Yes Garbage disposal or pumped to septic 50%larger tank with multiple comp/tanks <br /> 2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) <br /> Tank options: none <br /> 5) 1.2 <br /> GPD mound sand loading rate contour loading rate of 12 req's a min 62.5 ft. tong rockbed <br /> 6) 10.0 ft rockbed width 63.0 ft rockbed length <br /> 7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br /> end feed manifold connection <br /> 8) C�laterals 61.0 feet long 21.0 perfs / lateral 63 perts total <br /> (1/2 a pert means the first perf 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!i spacing, £c pipe size on line 12, max perfs/lateral= 30 , line#8 must be less--> OK <br /> 10) 4.0 doses per day (4 minimum) <br /> 1 1) 188 gallons per dose (treatment volume) <br /> 2.00 5x <br /> )2) 2.00 inch diameter laterals must be used to meet"4x pipe volume"requirement <br /> 2.00 3x <br /> )3) 23 feet of 2.0 inch supply tine leads to r 4 �galtons of drainback volume <br /> (Tip: 'top feed"manifold t,0 control the drainback) <br /> )4) 192 gallons TOTAL pump out volume (treatment+drainback) <br /> )5) 11 feet vertical lift from pump to mound laterals, leads to a: <br /> 16) 36 JGPM @ 17 feet of head, Pump requirement (note: >50gpm may require an extra 3-6'of head) <br /> )7) 750 gat Dose tank (code minimum) 1300 gal Dose tank (design size / LUG req'd) at 25.49 gpi <br /> leads to a <br /> is) 7.5 inch swing on Demand float, or timed dosing of5.3 min ON (confirm pump rate with drawdown <br /> (this delivers Average flow, =70%of Peak design ftow)ehrs OFF test and adjust as necessary) <br /> )9) 1 12 linChes from bottom of tank to"Pump OFF"float <br /> 20) 1 20 linches from bottom of tank to"Pump ON"float, orM33 <br /> inches to"Timer ON"float if time dosed <br /> 2�) 23 inches from bottom of tank to"Hi Level"float, or inches to"Hi Level"float if time dosed <br /> 2-') 714 gallons reserve capacity (after High Level Alarm is activated) <br />