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SCALE AS NOTED BY SRH PAGE 7 OF 10 S.R. HARTSELL, R.E.H.S. P.O. BOX 342 PACIFICA, CA 94044 [email protected] (650) 888-2419 CORDOBA CENTER 14045 MONTEREY ROAD SAN MARTIN, CA 95046 APN 779-06-002 NON-RESIDENTIAL SEPTIC SYSTEM CALCULATIONS SEPTIC 7 20.3 gpm MINIMAL SYSTEM HEAD & GPM PUMP SELECTED PERFORMANCE CURVE OF SELECTED PUMP SPECIFICATIONS OF PUMP SELECTED ORENCO PF SERIES PF100712 240 VOLTS/1 HORSEPOWER/1 PHASE 20 15 1 2 50 PUMP SYSTEM WORKSHEET Designer (REHS or RCE) ____ srhartsell, rehs 5979 _________________________________ Number of bedrooms_____0______ Total square footage of living space_______na_____ Septic tank size____ 20000 gallons_____ Installed drainfield ______________ Expansion drainfield_____na_______ Elevation of treatment inlet _________ Elevation of pump off (ft) - ___________ Total lift (Ft Head) = ____10 (A) TIGHT LINE Diameter of tight line (inches) _ 2__ Length of tight line from pump to upper drainfield (ft) __ _20______ (B) FITTINGS No. of Fittings Pipe LengthEquivalent (ft) See chart Total Pipe Equivalent (ft) ___90o standard elbow X _______ =_______ ___45o standard elbow X _______ =_______ ___90o long radius elbow X _______ =_______ ___other fittings X _______ =_______ ___gate valve (fully open) X _______ =_______ ___check valve x _______ =_______ (conventional swing) TOTAL=_______ (C) Total Length of Pipe = B + C = ________ (D) CALCULATIONS: Friction Loss in Pipes and Fittings: (D/100 ft) x _______ (friction loss per chart) = _______ (E) Head in Feet Required Pump Size: _____ (A) + _____ (E) = ______ (F) Total Pumping Head in Feet Pump Size: (F) versus GPM = Pump Size (refer to pump curve) Pump Model: (Attach Pump Curve) _____GPM at ______ (G) (ft of head: from pump curve) Manufacturer/Model______________________ 288 298 pump specification for flow equalization tank pump for equalization tank SPECIFICATIONS OF PUMP SELECTED FOR EQUALIZATION CHAMBER SPECIFICATIONS OF PUMP SELECTED .5 6 6 1 2 2.5 5 1 50 50 d valve 61 81 30 5.53 because valve is 1.5" 4.47 10 14.47 4.47 15' Goulds WE series 0511 November 30, 2015 REVISIONS 1 4-15-2016 COUNTY COMMENTS SRH 143.3' of TDH 10.3 gpm Field flow and pump calculations for drip system - design spreadsheets from Geoflow pump performance curve for drip system from Orenco systems, inc pump specifications from Orenco systems, inc equalization tank pump specifications from Goulds equalization tank pump specifications from Goulds equalization tank pump specifications from Goulds equalization tank pump specifications from Goulds from Orenco Systems, inc from Orenco Systems, inc from Orenco Systems, inc from Orenco Systems, inc
