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2011 purple code Mound Design <br />www.SepticResource.com (vers 15.2) <br />Property Owner: William Jenney <br />Site Address: 1320 Orono Oaks Drive <br />Comments: <br />Date: 12/19/2017 <br />PID: 3511823340007 <br />instructions: = = enter data =adjust if desired = = computer calculated - DO NOT CHANGE! <br />1) E'bedroom Type III Residential System <br />2) F 600 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 />>> 1.2 GPD/fta mound sand loading rate contour loading rate of 12 req's a min 50 ft. long rockbed <br />6) 10.0 ft rockbed width 50.0 ft rockbed length <br />7) =ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br />end feed manifold connection <br />8) laterals 48.0 feet long 17.0 perfs / lateral 51 perfs total <br />(1 /2 a perf means the first perf starts at the middle feed manifold) <br />g) 7/32 inch perfs at =feet residual head gives 0.56 'gpm flow rate per perforation <br />for this perf size Et spacing, Ft 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 />11) 150 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 />13) <br />=feet of 2.0 inch supply line leads to gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) 156 gallons TOTAL pump out volume (treatment +drainback) <br />lslelfeet vertical lift pump to mound laterals, leads to a: <br />F29 GPM C 13 feet of head, Pump requirement (note. >50gpm may require an extra 3-6' of head) <br />17) 500 IgaL Dose tank (code minimum) 1300 gat Dose tank (design size / LUG req'd) at 25.49 gpi <br />leads to a <br />181 =inch swing on Demand float, or timed dosing of 5.4 min ON (confirm pump rate with drawdown <br />(this delivers Average flow, =70% of Peak design ftow)l 9 Ihrs OFF test and adjust as necessary) <br />19)12 inches from bottom of tank to "Pump OFF" float <br />30) 18 inches from bottom of tank to "Pump ON" float, orM31 <br />inches to "Timer ON" float if time dosed <br />2n 21 inches from bottom of tank to "Hi Level" float, or inches to "Hi Level" float if time dosed <br />22) 765 ,gallons reserve capacity (after High Level Alarm is activated) <br />