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��` ;` OSTP Pump Tank Sizing, Dosing and Ftoat <br /> Min�ewtaPoitutlon and Timer Setting Design Worksheet UNIVERStTY <br /> Control Agency OF.MLtYNESOTA `"'-�,,: <br /> TIAAER or DEAAAND FLOAT SETTINGS <br /> Select Timer or Demand Dosing: p rmer Q.oemana oose <br /> A. Timer Settings <br /> 11. Required Flow Rate: <br /> A. From Design(Line 12 of Preswre Distribution or Line 10 of Non-Level'): � GPM "Nnte: This volue must 6e <br /> B.Or calculated:GPM=Cha�ge in Depth(in)x Gallons Per Inch/Time Interval in Minutes adjusted after ffeld <br /> �in X� � r_� GPM measurement& <br /> sal/in� min= calculotion. <br /> 12. Flow Rate from Line 11.A or 11.B above. � GPM <br /> 13.Calculate TIMER ON setting: <br /> Tota!Dosing Volume/GPM <br /> ��al'.-�4Pm=�Minutes ON <br /> 14.Calculate TIMER OFF setting: <br /> Minutes Per Day(1440)/Doses Per Day-Minutes On <br /> 1440 min .- �doses/day - �min = �Minutes OFF <br /> 15. Pump Off float-Measuring from bottom of tank: <br /> Dlstance to set Pump Of f Float=Gollons to Cover Pump /Ga/fons Per Inch: <br /> �Sat:��al/in= �Inches <br /> 16. Alarm Ftoat-Measurtng from bottom of tank: <br /> Distance to set A1arm Float=Tonk Depth(4A)X 90%of Tank Depth <br /> � in X 0.90= �in <br /> 6. DEMAND DOSE FLOAT SETTINGS <br /> 17.Calculate Float Separation Distance using Dos►ng Vo(ume. <br /> Totnl Dosfnq Voiume/Gallons Per Inch <br /> 199 gdl= 36.0 gat/in= 5.5 Inches <br /> 18•Measuring from bottom of tank: <br /> A. Distonce to set Pump Off Float=Pump and block height+2 inches <br /> 14 j�+� fIl = 16 Inches <br /> B, Distonce to set Pump On Float=Distance to Set Pump-Off F(oat +Float Separotion Ofstance <br /> 16 jn+ 5.5 ;n = 22 Inches <br /> C. Distance to set Alorm Float�Distonce to se[Pump-On Floot +Alarm Depth (2-3 inches) <br /> 22 in+ 2.0 j�= 24 Inches <br /> FLOAT SETTINGS <br /> DEAMND DOSING TIMED DOSING <br /> � <br /> Alarm Depth 2'� in Alarm Depth in <br /> Pump On 22 in <br /> Pump Off 16 in 199.4 Gai Pump Off 9n <br /> 576 Gal <br />