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v 04.01.2020 <br />1. A.Design Flow (Design Sum.1A):GPD C. Tank Use: <br />B. Min. required pump tank capacity: Gal D. Recommended pump tank capacity: Gal <br />2. A. Tank Manufacturer: 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 />3 <br />(Pump and block height + 2 inches) X Gallons Per Inch <br />(in +2 inches) X Gallons Per Inch =Gallons <br />4 <br /> -Item 18 of the Pressure Distribution or Item 11 of Non-level Gallons (Minimum dose)inches/dose <br />5Calculate Maximum Pumpout Volume (25% of Design Flow) <br />Design Flow: GPD X 0.25 =Gallons (Maximum dose)inches/dose <br />6 Gallons <br />7 Calculate Doses Per Day = Design Flow ÷ Delivered Volume <br />Doses <br />8 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 = <br />Gallons <br />9.Total Dosing Volume = Delivered Volume plus Drainback <br />gal + gal = <br />Gallons <br />10. Minimum Alarm Volume = Depth of alarm (2 or 3 inches) X gallons per inch of tank <br />in X gal/in = <br />Gallons <br />DEMAND DOSE FLOAT SETTINGS <br />11. Calculate Float Separation Distance using Dosing Volume . <br />Total Dosing Volume /Gallons Per Inch <br />Inches <br />12.Measuring from bottom of tank: <br />A.Distance to set Pump Off Float = Pump + block height + 2 inches Inches for Dose: 4.2 in <br />Inches Alarm Depth 19.2 in <br />B.Distance to set Pump On Float=Distance to Set Pump-Off Float + Float Separation Distance Pump On 16.2 in 75.0 Gal <br />in + in = <br />Inches Pump Off 12.0 in 106 Gal <br />C.Distance to set Alarm Float = Distance to set Pump-On Float + Alarm Depth (2-3 inches) 300 Gal <br />in + in = <br />Inches <br />10 <br />35 <br />6.0 <br />2 <br />100 <br />600 <br />25.0 <br />2.5 <br />6.0 <br />Select a pumpout volume that meets both Minimum and Maximum: <br />12 <br />gal/in =gal ÷ <br />16 <br />10 12 <br />25.0 <br />Calculate Volume to Cover Pump (The inlet of the pump must be at least 4-inches from the bottom of the pump tank & 2 inches of water covering the pump is <br />recommended) <br />63 <br />4.2 <br />3.0 <br />106 <br />1000 <br />25.0 <br />300 <br />gpd ÷ gal = <br />1916 <br />4.2 <br />75.025.0 <br />106 <br />100 <br />150 <br />35 <br />3 <br />in + 2 in = <br />600 <br />0.170 <br />DETERMINE DOSING VOLUME <br />600 <br />1000 <br />1000 Gallon Pump Tank <br />Note: Design calculations are based on this specific tank. <br />Substituting a different tank model will change the pump <br />float or timer settings. Contact designer if changes are <br />necessary. <br />40.0 <br />6.0 <br />6.00 <br />100 <br />0.170 <br /> Minimum Delivered Volume = 4 X Volume of Distribution Piping: <br />Pump Tank Design Worksheet (Demand Dose) <br />Project ID: DETERMINE TANK CAPACITY AND DIMENSIONS <br />600 Dosing