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�, OSTP Pump Tank Sizing, Dosin� and Float <br /> MinnesotaPollution an(� Tlmer $ettlllff,� �@Sl�ll �/Of�CS�I@@t UMVERSITY ,r�r��r�� >' � <br /> Controi Agency OF MINNESOTA �,\,,,; <br /> TIMER or DEMAND FLOAT SETTINGS <br /> Select Timer or Demand Dosing: O Timer OO Demand Dose <br /> A. Timer Settings <br /> 13. Required F(ow Rate: <br /> A. From Design(Line 11 of Pressure Distribution or Line 10 of Non-Level"): � GPM "Note: This va(ue must be <br /> B. Or catcutated:GPM=Change in Depth(in)x Gallons Per Inch(Line 1 or 2)/Time Interval in Minutes adjusted after jield <br /> measurement& <br /> in X�gal/in:��min=�� GPM calculotion. <br /> 14. Choose a Flow Rate from Line 13.A or 13.B above. �� GPM <br /> 15. Calcutate TIMER ON setting: <br /> Tota!Dosing Volume(Line 11)/GPM(Line 14) <br /> �gdl :�gPm =��Minutes ON <br /> 16. Calculate TIMER OFF setting: <br /> Minutes Per Day(1440)/Doses Per Day(Line 9)- Minutes On(Line 15) <br /> 1440 min ; �doses/day - �min = C�Minutes OFF <br /> 17. Pump Off Float-Measuring from bottom of tank: <br /> Distance to set Pump Off Float=Gallons to Cover Pump(Line 5)/Ga!(ons Per Inch(Line 1 or 2): <br /> ��gal =�gal/in = �incnes <br /> 18. Atarm Float-Measuring from bottom of tank: <br /> Distance to set Alarm Float=Tank Depth(4A)X 90q oJ Tank Depth <br /> � in X 0.90= ��n <br /> B. DEMAND DOSE FLOAT SETTINGS <br /> 18. Catcutate Ftoat Separation Distance using Dosing Volume. <br /> Tota(Dosing Vo(ume(Line 12)/Gallons Per Inch(Line 2) <br /> 212 gal: 25.5 gallin= 8.3 Inches <br /> 19. Measuring from bottom of tank: <br /> A. Distance to set Pump Off Float=Pump Height +Biock Height (Line 5)+q�Qrm Depth (Line 12) <br /> �5 �� * � in = 18 Inches <br /> B. Distance to set Pump On Float=Distance to Set Pump-OfJ Floot(Line 19.A)+Float Separation Distance(line 18) <br /> �$ in * $.3 in = 26 Inches <br /> C. Distance to set Afarm Float =Distance to set Pump-On Float (19.6)+A(arm Depth (2-3 inches) <br /> 26 in+ 3.0 in = 29 inches <br /> FLOAT SETTINGS <br /> DEMAND DOSING TIMED DOSING <br /> Alarm Depth 29 in Alarm Depth in <br /> Pump On 2f� in 77 Gal <br /> Pump Off �$ in 211.8 Gdl Pump Off in <br /> 459 Gal <br /> � � �3� <br />