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A. Determine PUMP aPa city' <br />Gravity Distribution <br />I. Minimum suggested is 600 gallons per hour (10 gpm) to stay ahead of <br />water use rate.is 2,700 <br />2. Maximum suggested for delivery to a drop box of a home system <br />gallons per hour (45 gpm) to prevent build-up of pressure in drop box' <br />Pressure Distribution <br />3 a Select number of perforated laterals ft. <br />b. Select perforation spacing - <br />c. Subtract 2 ft_ from the rock layer length. <br />-2ft - <br />d octermine the number of spaces between perforations. <br />e �cin ft. 4 --ft.. spaces <br />�+ 1 n perfbtations/lateral <br />f. Multiply perforations per lateral by number of laterals to <br />get total number of perforations. <br />t=. x g' perforation <br />x �_ gpm <br />SELECT M- PUMP CAPACITY 4� Urn <br />S. Dtttratine head requirtmtnts: <br />1 E2evat2on difference between PUMP and point of discharge. <br />_4 feet <br />2. if pumping to a pressure disi;-bution system, add five feet for pressure <br />required at manifold 5 feet <br />Friction loss <br />a. Egpm pipe nter friction loss table with and I diameter. <br />Read friction loss in feet per 100 feet from table. <br />F.T` ., ft./100 ft of pipe <br />b. Determine total pipe length from pump to discharge <br />point- Add 25 percent to pipe length for fitting <br />los% or use a fitting loss chart. Equivalent pipe <br />length -1.25 times pipe length - -x 1.25 feet <br />Z_ <br />C. Calculate total file n loss by multiplying <br />friction loss in ft/ 10D ft by equivalent pipe length• feet <br />Total friction loss W 2� X -7. Z.'s .100 - _1L- <br />4. Total head required is the sum of elevation difference, <br />speda) head requirements, and total friction loss. <br />2S +_-+ S <br />(1) (2) (30 <br />TOTAL HEAD feet <br />go PEWOR►T11M OF • R7IFORXTm U►TMAL <br />m.. c...r <br />.. _" J. ur.► d s.....+. <br />Los" S"w. ... I... r NW . w.....w <br />.r.r. w.. o.u.s n.l...•.+r <br />rr <br />mom To <br />• YL..ar . LOP <br />�. L.r. <br />2r": ':' `.11.0116. L0.0•.e .1 <br />`1..411. <br />tww F1 -e sole lwW <br />TABLE OF i ERFORA'1LON DISCHARGES IN CXM <br />tiesd <br />Perforadon dWmter tbwher) <br />3.0 inch <br />1/ <br />7 b <br />0.56 074 <br />1.3 <br />OS9 0.90 <br />2.Db <br />Ol0 104 <br />U <br />0)9 1.17 <br />3.0 <br />am 138 <br />4.0 <br />1.13 1.47 <br />SD <br />1.26 I b5 <br />C- pump selectionm (Ste A) <br />1. A pump must b feet <br />selectedtoto eal healver at <br />s Step B).t p <br />with at least e <br />sUw 1.0 foot of wed for rssidmtlal syssev/s. <br />bl;w 14 fee of teed for other 48tabL6heret6 <br />pipe Length <br />Point of DiscWtc <br />DifrettmeT <br />Er---E3ev@Lion <br />1 <br />F -18b <br />1.5 inch <br />2.0 inch <br />3.0 inch <br />PH60 te. A ICs ll.r FIF. <br />s <br />to <br />o•69 <br />i <br />12 <br />0.96 <br />o <br />14 <br />1.23 <br />0.3E <br />16 <br />1.63 <br />au <br />is <br />203 <br />0.60 <br />20 <br />247 <br />0.73 <br />0.11 <br />25 <br />3.73 <br />1.11 <br />0.16 <br />30 <br />5.23 <br />1s5 <br />033 <br />35 <br />7.90 <br />206 <br />0.30 <br />40 <br />11.07 <br />2.64 <br />0.39 <br />45 <br />t4.73 <br />3.22 _ <br />0.4E <br />30 <br />3.99 <br />038 <br />55 <br />4.76 <br />0.70 <br />60 <br />5.60 <br />0.92 <br />