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4STP Pressure Distribution �,�, . <br /> �� �� Desi n Worksheet uN�`'E�sITY � ��� �9.�� <br /> Minnesota Poliution <br /> Control Agenty � OF MI N N ESOTA "�\�' <br /> 12. Catculate the Square Feet per Perforation. Recommended va(ue is 4-11 ftZ per perforotion. <br /> Does not appty to At-Grades <br /> a, Bed Areo = Bed Width (ft) X Bed l.ength �fty <br /> 10 ft X 50 ft = 500 ftZ <br /> b. Squore Foot per Perforation = Bed A�ea divided by the Tota! Number of Perforations. <br /> ��� ftz - 51 perforations = 9.8 ftZ/perforations <br /> 13. Select Minimum Average Head: 1.0 ft <br /> 14. Setect Perforotron Discho�ge (GPM) based on Table: 0.56 GPM per Perforation <br /> 15. petermine required Flow Rate by multiplying the Tota! Number of Perfs. by the Perforotion Discharge. <br /> 51 Perfs X 0.56 GPM per Perforation = 29 GPM <br /> 16. Votume of Liquid Per Foot of Distribution Piping (Table 1/): 0.170 Galtons/ft <br /> 17. Volume of Distribution Piping = <br /> _ -- _ ------ _ . <br /> Table ii <br /> _ [Number of Perforated Laterals X Length of Laterois X (Volume of volume of Liquid in <br /> Liquid Per Foot of Distribution Piping] Pipe <br /> Pipe Liquici <br /> � X 48 ft X 0.170 gaVft = 24.5 Gatlons ' Diameter Per Foot <br /> (inches) (Gallons) <br /> 18. Minimum Detivered Volume = Votume of Distribution Piping X d 1 0.045 <br /> 1.25 0.078 <br /> 24.5 gals X 4 = 97.9 Galtons 1.5 0.110 <br /> 2 0.170 <br /> mamo pipe` ' 3 0.380 <br /> � 4 0.661 <br /> i ----- -- -- <br /> � � CManouts ' - � <br /> pGpe from pump � <br /> . Mam1oW p�pe, <br /> lean outs <br /> ♦ <br /> ` .,. <br /> • <br /> akemate locauon � <br /> o( i from um �Altemate locauoo <br /> 01 pipe from pump <br /> P� irom m <br /> Comments/Special Design Considerations: <br />