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2011 purple code Mound Design <br />v.^nnw.SepticResource.com (vers 15.2) <br />Property Owner: Norton Homes Date: 6/19/2018 <br />Site Address: 4350 Lakeview Court PID: 0611723430019 <br />Comments: Primary Site <br />instructions: �.J = enter data = adjust if desired = computer calculated - DO NOT CHANGE! <br />1 f bedroom Type �I 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/ftz mound sand loading rate contour loading rake of12 req's a min 62.5 ft. long rockbed <br />v 10.0 Ift rockbed width 63.0 ft rockbed length <br />7 =ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br />end feed manifold connection <br />Silaterals F61.0feet long 21.0 perfs / lateral 63 perfs total <br />(1 /2 a perf 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 £t spacing, i* 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 />i l r 1 887 gallons per dose (treatment volume) <br />2.00 5x <br />I2 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement <br />2.00 3x <br />145 feet of 2.0 inch supply line leads to F25 gallons of drainback volume El <br />(Tip: "top feed" manifold to control the drainback) <br />I4 213 gallons TOTAL pump out volume (treatment + drainback) <br />Fi 15 feet vertical lift from pump to mound laterals, leads to a: <br />36 GPM C 27 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17) 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 8.4 inch swing on Demand float, or timed dosing ofF'g'qhrs <br />min ON (confirm pump rate with drawdown <br />(this delivers Average flow, =70% of Peak design flow) OFF test and adjust as necessary) <br />12 inches from bottom of tank to "Pump OFF" float <br />10 20 inches from bottom of tank to "Pump ON" float, or 12 inches to "Timer ON" float if time dosed <br />21 23 inches from bottom of tank to "Hi Level" float, or 33 inches to "Hi Level" float if time dosed <br />„) 664 gallons reserve capacity (after High Level Alarm is activated) <br />