Laserfiche WebLink
2011 purple code Mound Design <br /> www.SepticResource.com (vers 15.2) <br /> Property Owner: M and M Construction Date: 12/12/2017 <br /> Site Address: 125 Bayside Trail, Orono, MN 55359 PID: 0611723220029 <br /> Comments: NEW CONSTRUCTION <br /> instructions: =enter data = adjust if desired = computer calculated - DO NOT CHANGE! <br /> 1) 5 bedroom Type I Residential System <br /> 2) 750 GPD design flow <br /> 3) No Garbage disposal or pumped to septic <br /> 4) 2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) <br /> Tank options: Multiple tanks or compartments req'd <br /> 5) 1.2 GPD/ft2 mound sand loading rate contour loading rate of 12 req's a min 62.5 ft. long rockbed <br /> 6) 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 /> 8) 3 laterals 61.0 feet long 21.0 perfs / lateral 63 perfs total <br /> (1/2 a perf means the first perf starts at the middle feed manifold) <br /> 9) 7/32 inch perfs at 1 feet residual head gives 0.56 gpm flow rate per perforation <br /> for this perf size a spacing, a pipe size on line 12, max perfs/lateral = 30 , line#8 must be less --> OK <br /> 10) 5.0 doses per day ( 4 minimum) <br /> 11) f 150 gallons per dose (treatment volume) <br /> 1.50 5x <br /> 12) 2.00 inch diameter laterals must be used to meet"4x pipe volume" requirement <br /> 2.00 3x <br /> 13) 90 feet of 2.0 inch supply line leads to 15 gallons of drainback volume <br /> (Tip: "top feed"manifold to control the drainback) <br /> 14) 165 gallons TOTAL pump out volume (treatment+ drainback) <br /> 15) 12 feet vertical lift from pump to mound laterals, leads to a: <br /> 16) 36 GPM® 21 feet of head, Pump requirement (note: >50gpm may require an extra 3-6'of head) <br /> 17) 1000 gal Dose tank (code minimum) 1500 gal Dose tank (design size / LUG req'd) at 36.80 gpi <br /> leads to a <br /> 18) 4.5 inch swing on Demand float, or timed dosing of 4.6 min ON (confirm pump rate with drawdown <br /> (this delivers Average flow, =70%of Peak design flow) 7.2 hrs OFF test and adjust as necessary) <br /> 19) 12 inches from bottom of tank to"Pump OFF"float <br /> 20) 17 inches from bottom of tank to "Pump ON" float, or 12 inches to "Timer ON"float if time dosed <br /> 21) 20 inches from bottom of tank to "Hi Level"float, or 30 inches to"Hi Level"float if time dosed <br /> 22) 764 gallons reserve capacity (after High Level Alarm is activated) <br />