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2011 purple code Mound Design <br />www.SepticResource.com (vers 15.2) <br />Property Owner: T. J. Grittner Date. 6/11/2018 <br />Site Address: 2250 Longview Circle PID: 0311723220008 <br />Comments: <br />instructions: = = enter data = adjust if desired = computer calculated - DO NOT CHANGE! <br />I r bedroom Type I ' J Residential System <br />1) 750 GPD design flow <br />3l. Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks <br />-t) 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 rate of 12 req's a min 62.5 ft. long rockbed <br />ni 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 />laterals 61.0 feet long 11.0 perfs / lateral 63 perfs total <br />(1/2 a perf means the first perf starts at the middle feed manifold) <br />7132 inch perfs at feet residual. head gives 0.56 gpm flow rate per perforation <br />for this perf size Et spacing, Et pipe size on line 12, max perfs/lateral = 30 , line #8 must be less — OK <br />io, 4.0 doses per day (4 minimum) <br />i i, 188 gallons per dose (treatment volume) <br />2.00 5x <br />inch diameter laterals must be used to meet "4x pipe volume" requirement <br />2.00 3x <br />feet of 2.0 inch supply line leads to =gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />l-1, 193 gallons TOTAL pump out volume (treatment + drainback) <br />13 feet vertical lift from pump to mound laterals, leads to a: <br />36 GPM @ ZO feet of head, Pump requirement (note: ,50gpm may require an extra 3-6' of head) <br />17: 750 gal Dose tank (code minimum) 1300 gal Dose tank (design size / LUG req'd) at 25.49 gpi <br />leads to a <br />18) 7.6 inch swing on Demand float, or timed dosing of5.4 min ON (confirm pump rate with drawdown <br />(this delivers Average flow, =70% of Peak design fIn 9 hrs OFF test and adjust as necessary) <br />F19 1Z inches from bottom of tank to "Pump OFF" float <br />na 20 inches from bottom of tank to "Pump ON" float, orM33 <br />inches to "Timer ON" float if time dosed <br />,l Z3 inches from bottom of tank to "Hi Level" float, or inches to "Hi Level" float if time dosed <br />22) 714 gallons reserve capacity (after High Level Alarm is activated) <br />