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2011 purple code <br />Mound Design <br />Property Owner: Norton Homes <br />Site Address: 4665 St. Andrews Street <br />Comments: Upper Bock bed <br />--— -.. P— N, auurLr.curri tvers t*.z) <br />Date: 8/14/2018 <br />PID: 0611723310012 <br />instructions: = = enter data_ adjust if desired <br />] Q = computer calculated - DO NOT CHANGE! <br />l) bedroom Type Residential System <br />GPD design flow <br />3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks <br />y 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 31.3 ft. long rockbed <br />10.0 ft rockbed width 32.0 ft rockbed length <br />3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br />end feed manifold connection <br />laterals 30.0 feet long 11.0 perfs / lateral 33 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 />lo) 4.0 doses per day ( 4 minimum) <br />11) =gallons per dose (treatment volume) <br />2.00 5x <br />12) 2.40 inch diameter laterals must be used to meet "4x pipe volume" requirement <br />2.40 3x <br />13) =feet of 2.0 inch supply line leads to ##### gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) ###### gallons TOTAL pump out volume (treatment + drainback) <br />15)feet vertical lift from pump to mound laterals, leads to a: <br />1 <br />6) 19 GPM @ ##### feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17) 375 gal Dose tank (code minimum) 1250 gal Dose tank (design size / LUG req'd) at 25.49 gpi <br />leads to a <br />18) ###### 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 />i9)Winches <br />inches from bottom of tank to "Pump OFF" float <br />,)n) inches from bottom of tank to "Pump ON" float, or 12 inches to "Timer ON" float if time dosed <br />21) 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 />