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2011 purple code Mound design <br />wwuv.5epticResource.com (vers 15.2) <br />Property Owner: Swanson Homes <br />Site Address: 4315 Lakeview Court <br />Comments: <br />Date: 3/27/2019 <br />PID: 0611723430015 <br />instructions: = = enter data = adjust if desired = = computer calculated - DO NOT CHANGE! <br />1)bedroom Type 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 />s) 1.2 GPD/ft2 mound sand loading rate contour loading rate of =req's a min 62.5 ft. long rockbed <br />6) 10.0 ft rockbed width 62.5 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 />8)laterals 60.5 feet long 21.0 perfs / lateral 63 1perfs total <br />(1 /2 a perf means the first pert 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 Et spacing, & pipe size on line 12, max perfs/lateral = =1 line #8 must be less > <br />10) 4.0 doses per day (4 minimum) <br />11) 188 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 />«) 95 feet of 2.0 inch supply line leads to =gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) 204 gallons TOTAL pump out volume (treatment + drainback) <br />l5) 19 feet vertical lift from pump to mound laterals, leads to a: <br />16) 36 GPM @ 28 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17) 750 gal Dose tank (code minimum) 125fl gal Dose tank (design size / LUG req'd) at 25.49 gpi <br />leads to a <br />18) 8.0 inch swing on Demand float, or timed dosing of5.7 min ON (confirm pump rate with drawdown <br />(this delivers Average flow, =70% of Peak design flow)i T lhrs OFF test and adjust as necessary) <br />l9)[flinches <br />inches from bottom of tank to '"Pump OFF" float <br />10) inches from bottom of tank to "Pump ON" float, orP33 <br />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) 664 gallons reserve capacity (after High Level Alarm is activated) <br />