Laserfiche WebLink
2011 purple code Mound Design <br /> www.SepticResource.com (vers 15.2) <br /> Property Owner: NOR-SON Date: 10/30/2016 <br /> Site Address: 500 Willow Drive S PID: 0311723320017 <br /> Comments: 5 Bedroom house and one bedroom guest house <br /> instructions: = = enter data = adjust if desired = = computer calculated - DO NOT CHANGE! <br /> Ibedroom Type Residential System <br /> ,, 900 GPD design flow <br /> 31 Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks <br /> 4) 3000 Gal Septic tank (code minimum) 3000 Gal Septic tank (design size / LUG req'd) <br /> Tank options: none <br /> 1.2 GPD/ft2 mound sand loading rate contour loading rate of 12 req's a min 75 ft. long rockbed <br /> c,) 10.0 ft rockbed width 75.0 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 73.0 feet long 25.0 perfs / lateral 75 perfs total <br /> (1/2 a perf means the first perf starts at the middle feed manifold) <br /> Q 7/32 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 > G <br /> lo) 4.0 doses per day ( 4 minimum) <br /> 1 1 225 gallons per dose (treatment volume) <br /> 2.00 5x <br /> 12) 2.00 inch diameter laterals must be used to meet 'Ax pipe volume" requirement <br /> 2.00 3x <br /> feet of 2.0 inch supply tine leads to ##### gallons of drainback volume <br /> (Tip: "top feed" manifold to control the drainback) <br /> 141 gallons TOTAL pump out volume (treatment + drainback) <br /> 1s) feet vertical lift from pump to mound laterals, leads to a: <br /> 16) 42 GPM @ ##### feet of head, Pump requirement (note: >50gpm may require an extra 3-6'of head) <br /> 17) 900 gal Dose tank (code minimum) 900 gal Dose tank (design size / LUG req'd) at gpi <br /> leads to a <br /> 18) ###### inch swing on Demand float, or timed dosing ofOhrs <br /> min ON (confirm pump rate with drawdown <br /> (this delivers Average flow, =70%of Peak design flow) OFF test and adjust as necessary) <br /> 19) 12 inches from bottom of tank to"Pump OFF" float <br /> inches from bottom of tank to"Pump ON" float, or 12 inches to "Timer ON"float if time dosed <br /> 21) ###### 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 />