Laserfiche WebLink
A. Determine pump capacity: <br />Gravity Distribution <br />1. Minimum suggested is 600 gallons per hoe., � 10 hpm) to stay ahead of <br />wader use rate. <br />2. Maximum suggested for delivery to a drop box of a home system e a <br />gallons per hour (45 gpm) to prevent build-up of pressure in drop bo... <br />Pressure D4lrlbutiloa <br />3. a. Select nuw&wrof pe'nwated laterals <br />b. SdW perforation spacing '3_ it. <br />c. Subtr :t 2 ft. from the rock layer length. <br />-2ft. ft. <br />d. Eleterrnine the number of spaces between perforations. <br />Un.0 per- spacing = _rJic._ ft- + 1-ir.- ft. _ -R1_ spaces <br />e. a a- spaces + 1 a S-L.i,_ perforations/lateral <br />f. Multiply perforations per lateral by number of laterals to <br />get total number of perforations. <br />rfwiti.�. x ...1L2 perforations. <br />PW <br />SELECtED PUMP CAPACITY •L gpm <br />B. Determine head requirements: <br />1. Elevation difference between pump and point of discharge. <br />fee! <br />2. If pumping to a pressure distributiri� system, add five feet for pressure <br />.,quired at manifold <br />s feet <br />3. Friction loss <br />a. Enter friction loss table with gpm and pipe diameter. <br />Read friction loss in fee! per 100 feet from table. <br />F.L = . a . k 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 />loss, or use a fitting loss chart. Equivalent pipe <br />length -1.25 times p�c length - <br />I Dx1.2= lsl. feet <br />c. Calculate total friction loss by multiplying <br />friction loss in ft/100 ft by equivalent pipe length. <br />Total friction loss= :) . L x 1 S b +100 �_ feet <br />Total head required is the sum of cic►'ag on difference, <br />special head requirements, and total f7-- -tion loss. <br />-I + ! + 4_ <br />(1) (2) (3c) <br />TOTAL HEAD_ feet <br />C. Pump selection <br />1. A pump must be selected to deliver at least _250- gpm (Step A) <br />with at least feet of total head (Step B). <br />DO rEWORATWN OF A PEYW RATED LATERAL <br />e,.. cn. <br />Ty.d <br />New <br />a" low up <br />« � vs. <br />w L^W _ .. <br />� <br />.wrs :i'in'"'"'' <br />TABLE OF POUK RA71l]P1 DOCHAVAM IN GM <br />Had Paints" diewow0whM <br />1.3 inch <br />V. <br />,/4 <br />tae <br />M <br />ON <br />is <br />Oi! <br />090 <br />2Ab <br />Wo <br />101 <br />2.5 <br />on <br />1.17 <br />3.0 <br />098 <br />IJs <br />40 <br />1.13 <br />IA? <br />SA <br />1.76 <br />Lid <br />RUG* 1.0 W dletad !or "sWntlet gelear <br />bU t 20 feet d hud Los other asublishomb <br />Pipe LAmSth <br />Paint of Discharjc <br />T/CL` <br />ETZ77"' <br />auon Diffcmnce <br />9" r <br />F -18b <br />1.3 inch <br />2.0 inch <br />3.0 inch <br />Spm <br />rrkam kw PW 100 h «P44 <br />10 <br />f <br />0.20 <br />12 <br />0.96 <br />0.28 <br />14 <br />1.25 <br />0.38 <br />16 <br />1.63 <br />0.48 <br />18 <br />2.03 <br />0.60 <br />20 <br />2.47 <br />0.73 <br />0.11 <br />25 <br />3.73 <br />1.11 <br />0.16 <br />30 <br />5.23 <br />1.55 <br />0.23 <br />35 <br />7.90 <br />2.06 <br />0.30 <br />40 <br />11.07 <br />2.64 <br />0.39 <br />45 <br />14.73 <br />3.28 <br />0.48 <br />5o <br />3.99 <br />0.38 <br />SS <br />4.76 <br />0.70 <br />60 <br />5.60 <br />0.82 <br />