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2011 purple code Mound Design <br />www.SegtiCResource.com !vers 15.21 <br />Property Owner: Ann Behning Date: 10/10/2018 <br />Site Address: 160 Big Island PID: 2311723230020 <br />Comments: Classification II Cabin <br />instructions: = = enter data = adjust if desired = computer calculated - DO NOT CHANGE! <br />t) bedroom Type L� Residential System <br />2) 225 GPD design flow <br />3) No Garbage disposal or pumped to septic <br />4) Gal Septic tank (code minimum) 1000 Gal Septic tank (design size / LUG req'd) <br />Tank options: none <br />s) 1.2 GPD/ft2 mound sand loading rate contour loading rate of =req's a min 18.8 ft. long rockbed <br />6) 10.0 ft rockbed width 14.0 ft rockbed length <br />7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br />Lend feed manifold connection <br />8) I !laterals 17.0 feet long 6.0 perfs / lateral 18 perfs total <br />(1 /2 a perf means the first perf starts at the middle feed manifold) <br />g) 1 /4"° inch perfs at feet residual head gives 0.74 gpm flow rate per perforation <br />for this perf size Et spacing, It pipe size on line 12, max perfs/lateral = 25 , line #8 must be less > OK <br />10) 4.0 doses per day (4 minimum) <br />11) 56 gallons per dose (treatment volume) <br />2.00 5x <br />i2) Z.00 inch diameter laterals must be used to meet "4x pipe volume' requirement <br />2.00 3x <br />33) 6D feet of 2.0 inch supply line leads to =gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) b6 gallons TOTAL pump out volume (treatment + drainback) <br />ts) 17 Ifeet vertical lift from pump to mound laterals, leads to a: <br />16) 14 GPM @ 23 feet of head, Pump requirement (note: >50gpm may require an extra 3.6' of head) <br />E7) 225 gal Dose tank (code minimum) i000 gal Dose tank (design size / LUG req'd) at gpi <br />Leads to a <br />18) ###### inch swing on Demand float, or timed dosing of4.7 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 />�9) 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 />20 ###### 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 />