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v 07.14.15 <br /> <br />1.A.Design Flow (Design Sum.1A):GPD <br />B.Min. required pump tank capacity:Gal C.Recommended pump tank capacity:Gal <br />D.Pump tank description: <br />MEASURED TANK CAPACITY (existing tanks): <br />2.A.Rectangle area = Length (L) X Width (W) <br />ft X ft =ft2 <br />B.Circle area = 3.14r2 (3.14 X radius X radius) <br />3.14 X 2 ft =ft2 <br />C. <br />ft2 X 7.5 gal/ft3 ÷ 12 in/ft =Gallons per inch <br />D.Calculate Total Tank Volume <br />Depth from bottom of inlet pipe to tank bottom :in <br />Total Tank Volume = Depth from bottom of inlet pipe (Line 4.A) X Gallons/Inch (Line 2) <br />in X Gallons Per Inch = Gallons <br />MANUFACTURER'S SPECIFIED TANK CAPACITY (when available): <br />3.A.Tank Manufacturer: <br />B.Tank Model: <br />C.Capacity from manufacturer:Gallons <br />D.Gallons per inch from manufacturer:Gallons per inch <br />E.Liquid depth of tank from manufacturer:inches <br />4. <br />(Pump and block height + 2 inches) X Gallons Per Inch (2C or 3E) <br />(in +2 inches) X Gallons Per Inch =Gallons <br />5. <br />- Line 17 of the Pressure Distribution or Line 11 of Non-level Gallons (minimum dose) <br />6.Calculate Maximum Pumpout Volume (25% of Design Flow) <br />Design Flow:GPD X =Gallons (maximum dose) <br />7.Gallons <br />8.Calculate Doses Per Day = Design Flow ÷ Delivered Volume <br />Doses <br />9.Calculate Drainback: <br />A.Diameter of Supply Pipe =inches <br />B.Length of Supply Pipe =feet <br />C.Volume of Liquid Per Lineal Foot of Pipe =Gallons/ft <br />D.Drainback = Length of Supply Pipe X Volume of Liquid Per Lineal Foot of Pipe <br />ft X gal/ft =Gallons <br />10.Total Dosing Volume = Delivered Volume plus Drainback <br />gal +gal = Gallons <br />11.Minimum Alarm Volume = Depth of alarm (2 or 3 inches) X gallons per inch of tank <br />in X gal/in = Gallons49.8 <br />Note: Design calculations are based on <br />this specific tank. Substituting a <br />different tank model will change the <br />pump float or timer settings. Contact <br />designer if changes are necessary. <br />1000 <br /> <br /> <br />OSTP Pump Tank <br />Design Worksheet <br />1094 <br />24.9 <br /> <br />398 <br />Select a pumpout volume that meets both Minimum and Maximum: <br />gpd ÷ gal = <br />IM-1060 <br />Calculate Volume to Cover Pump (The inlet of the pump must be at least 4-inches from the bottom of the pump <br />tank & 2 inches of water covering the pump is recommended) <br />DETERMINE DOSING VOLUME <br />44.0 <br />4.4 <br />4 <br />56 <br />0.170 <br /> Minimum Delivered Volume = 4 X Volume of Distribution Piping: <br />24.9 <br />1000 <br />2 <br />60 <br />56 <br />56 <br />26 <br />14 <br />26 <br />4.4 <br />Infiltrator <br />225 <br />56 <br />0.170 <br />0.25 <br />225 <br />2 24.9 <br />Calculate Gallons Per Inch. Multiply the area from 1.A or 1.B, by 7.5 to determine the gallons per foot <br />the tank holds and divide by 12 to calculate the gallons per inch. <br />Project ID: DETERMINE TANK CAPACITY AND DIMENSIONS <br />Demand to Gravity <br /> <br />225 <br />Width <br />Length <br />Radius