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Page � <br /> H2 . 26 Cubic Yards of Rock trorn �r,;? 1 <br /> H3. 33 Cubic Yards needed for Loamy Cap <br /> H4 . 110 Cubic Yards needed for 6 incres ofi Black Dirt Cover <br /> PRESSURE DISTRIBUTION SYSTEP�I <br /> 1. Selected Number of F�rforatAd L�aterals: 3 <br /> 2 . Perforation Spa��ing Set at 3 fe�t <br /> 3. Lateral Lpngth is to be Centere�� 1 Foot from Each end of the R <br /> ock Bed <br /> 69 feet - 2 fee� = 67 f�et <br /> 4 . Calculate Nurnber of STJc�iCE?S bptwc�.en PUrforations <br /> Length �3} divi�7ed by Spaci n�� (;=' ) = i�iumber o� Spaces (4) <br /> 67 divided bv 3 = �� S���cP� <br /> 5. Actual Per=aratior�s is equal tc Ca�cl_ilated �: ; plus 1 <br /> 23 Perforatior�s per Lateral = "."� + 1 <br /> 6. Total Perforation� _ �erforaticnsi La�er:;l (P5) times # of Late <br /> rals {P1) <br /> 69 = 23 x 3 <br /> 7 . Flow Rate (gpm) = rlumber cf Fer�oraticns ti.:�es Flow per Perfo <br /> ration <br /> Flow per Perforation = . 74 gpm/perf <br /> 51 gpm = 69 x .74 gpm/perf <br /> 8 . If the Header Pipe is conr.PctPr�i to the end or the Pressure <br /> Distribution Systern then the calcula�ed Lateral Diameter is <br /> 2 inches <br /> 9. If the Header Pipe is connected to the P�Iiddle of the Pressure <br /> Distribution System then thP c�.l��_ilated Lateral Dian:eter is <br /> 1 . 5 inches <br /> MINIMUM Selected Purnp Capacity: 51 gnr� <br /> B. Head Requirements <br /> 1 . Elevation difference between purlp ana point of discharge <br /> 17 feet <br />