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. i��� � �ru,wri�3r- <br /> � � OSTP Pump Tank Sizing� DOSICIS� drld F�08t UNIVERSITY <br /> Minnesota Pollutbn and Timer Setting Design Worksheet OF MINNESOTA <br /> Cor�hol AgencY <br /> TIMER or DEAAAND FLOAT SETTINGS <br /> Seled Timer or Demand Dosing: O rmer OO �nand Dose <br /> A. Timer Settings <br /> 13. Required Flow Rate: <br /> A. From Design(Line 11 of Pressure Distribution or Line 10 of Non-Level'): 33 GPM 'Note: This value must be <br /> adjusted after field <br /> B. Or calculated:GPM�Change in Depth(in)x Gallons Per Inch(Line 1 or 2)/Time Interval in Minutes meawrement Fr <br /> � in X��gat/in+�min=� GPM calculation. <br /> 14. Choose a Flow Rate from Line 13.A or 13.B above. �� �PM <br /> 15. Calculate TIMER ON setting: <br /> Tomf Dcsing Volume(Line 11)/GPM(Line 14) <br /> f --1 gat 1��gp�,���Minutes ON <br /> l—_1 <br /> 16. Calculate TUAER OFF se[ting: <br /> Minu[es Per Day(1440)/Dases Per Day(Line 9)- Minutes On(Line 15) <br /> 1440 min = ��doses/day - �_�T"�� = C�Minutes OFF <br /> 17, Pump Off Float-Measuring from bottom of tank: <br /> Distance to set Pump OtJ Float�Gatlons to Cover Pump(Line 5)/Go!lons Per Inch/Line 1 or 2): <br /> ��gal=�gaVin= ��nches <br /> 18. Alarm Float-Measuring from bottom of tank: <br /> Distonce to set A(arm Float�Tonk Depth(4A)-Alarm Depth(Line 13) <br /> � � ���� <br /> �n - �� - <br /> ----___ <br /> B. DEMAND DOSE FLOAT SETTINGS <br /> 18. Calalate Floct Seperation'Drstance using Dosing Vvlume. . <br /> 7oicl Dosing Volume(Line 11)/Gallons Per lnch(Line 2) <br /> 120 gal: 31.2 gaUin- 3.8 Inches <br /> 19. N,easuring from bot[om of tank: <br /> A. Drstance to set Pump 0�Float=Pump Height+8lock Height (Line 5)+Alarm Depth (Lir�e 13) <br /> C_--J �n+ �� in = 10 incnes <br /> B, Distance to set Pump On Float=Drstance io Set P+�mp-Off F(oat(Line 19.A)+Float Separatinn Distance(Line 18) <br /> 10 in+ 3.8 in = 14 inches <br /> C. Distance to set qlarm Float =Distance to set Pump-On Float (19.B)+Alarm Depth {2-3 inches) <br /> 14 in+ 2.0 in= 16 Inches ` <br /> � <br /> FLOAT SETTINGS <br /> DEMAND DOSING TIMED.DOS�NG ' <br /> i <br /> Alarm Depth 16 in Alarm Depth in <br /> � <br /> � Pump on �4 1n 62 Gallons <br /> Pump Off 'j� �� 119.65 Gallons Pump Off—�in <br /> 666666666667 <br /> � o /'1 ar� v� � � ; <br /> �6 V �— �� � <br /> �fl/���` ��/tit )� ; <br /> �U�� <br /> ,9-l� � <br /> �: <br /> :� <br /> ;. <br /> _ _ _ _ _ __ _ __ _ _ <br />