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2011 purple code Mound Design <br /> www.SepticResource.com (vers 15.2) <br /> Property Owner: Stonewood LLC. Date: 6/18/2018 <br /> Site Address: Proposed Lott PID: 0211723230005 <br /> Comments: Site B <br /> instructions: = enter data =adjust if desired = computer calculated . DO NOT CHANGE! <br /> 1) 5 bedroom Type ! 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 /> 4 2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) <br /> Tank options: none <br /> 1.2 GPD/ft2 mound sand loading rate contour loading rate of 12 req's a min 62.5 ft. long rockbed <br /> c,) 10.0 ft rockbed width 62.5 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 /> s: 3 laterals 60.5 feet long 21.0 perfs / lateral 63 perfs total <br /> (1/2 a pert means the first perf starts at the middle feed manifold) <br /> 3) 7/32 inch perfs at 1 feet residual head gives 0.56 gpm flow rate per perforation <br /> for this perf size&spacing, & pipe size on line 12, max perfs/lateral= 30 , line#8 must be less --> OK <br /> i0) 4.0 doses per day (4 minimum) <br /> I i) 188 gallons per dose (treatment volume) <br /> 2.00 5x <br /> 12) 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 /> 1-) ######gallons TOTAL pump out volume (treatment+ drainback) <br /> i>> feet vertical lift from pump to mound laterals, leads to a: <br /> 16) 36 GPM® ##### feet of head, Pump requirement (note: >50gpm may require an extra 3-6'of head) <br /> n) 750 gal Dose tank (code minimum) 1250 gal Dose tank (design size / LUG req'd) at 25.49 gpi <br /> leads to a <br /> iso ######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 /> 19) 12 inches from bottom of tank to"Pump OFF"float <br /> 20) ###### inches from bottom of tank to"Pump ON"float, or 12 inches to"Timer ON"float if time dosed <br /> 21) ######inches from bottom of tank to"Hi Level"float, or ##### inches to"Hi Level"float if time dosed <br /> 22) ######gallons reserve capacity (after High Level Alarm is activated) <br />