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., � �'UMP SELECTIOI�T�P�Z�C�D�J�RE� ` <br /> � ��� �� <br /> 1. Dete-rxnirte pump capacity: <br /> ,.A�,..A. Gravity d�istribution , <br /> 1. Miniinum'requiY'ed discharge is 10 gpm . <br /> 2. Maximum suggested'discharge is 45 g�m. For other <br /> . _ <br /> establishxnents at:least 1�%:greater than the water supply rate, <br /> but no faster than the rate at which effluent will flow out of the . <br /> distribution device. � � � <br /> B. Pressure distribution � <br /> See press,ure distribution work sheet <br /> From A or B. Selected'pump capacity: �!gp� <br /> 2. Determine pum� head:requirements: t�s��--�-'� <br /> spU.#c�a#�ea�t system <br /> A. Elevatiori difference between pump az1d point of discharge? . &��.��p�ge <br /> �_feet o�va°9p°:d;: `�� <br /> total Ipe <br /> B. Special head requiremerit?(See Figure at right-Special Head Requirements) � lengt <br /> � 2A,elevatfon <br /> feet pipe ;# difference <br /> ' C. Calculate Friction loss . ..._... .. . <br /> 1. Selett.pipe diameter'�_in .._..._ -------------------------- ----4SS� <br /> 2. Enter Figure E-9 with gpm(1A or B) and pipe diameter(C1). <br /> Read frittion`lossin feetper 100 feet from Figure E-9 S,pec�al 'Head Requirements <br /> �� �t 1_,ft/•100ft of pipe Gravity Distribution 0 ft <br /> Friction�Loss=• � Pressure Disfribution 5 ft <br /> 3. Determine total pxpe length fr�m piunp discharge to soil treatrnent � <br /> discharge point.EStirnate by adding 25 percent to pipe length far � <br /> fitting loss. Totalpipe length times 1.25=equivalent pipe length E-9; Frlction Loss In:Plastic Pipe <br /> ��feet x 1.35 = L� feet � Per t 00 feet <br /> 4. C a l c u late total friction loss b.y multiplying friction loss (C2) � nominat <br /> and divide b 100. � p ipe d f a m e t e r <br /> in ft/100 ft,by:.the equivalent.pipe length(C3) Y flow rate 1.5" 2" 3" <br /> _ ;1 ft/100ft x�_+100= � ft m <br /> D. Total head required is.the sum of elevation difference (A),speci�l�� 20 � 2:47 0.73 0.11 <br /> 25 3.73 1,11 0.16 <br /> head xequirements.($),ar�d�total friction loss (C4) 30 5.23 1.55 0,23 <br /> (,o ft+ . -` ��}+�t- 35 6,96 2.06 0.30 <br /> Total head: 'Z_ �feet ao a.9� 2.ba o.39 <br /> 45 11,07 3.28 0.48 <br /> 3. Purnp selection 50 �s,46 3.99 0.58 <br /> �5 4J6 OJO <br /> p,pump must be selected to deliver at least�gp� bp 5.60 0,82 <br /> (lA or B)with at least�.._feet of total head (2D) 65 6.48 0.95 <br /> � ' 70 7.44 1,09 <br /> I hereby certify that I have com leted.this work in accordance with applicabl�ordinances, �:rules and laws. <br /> ��; {j��i . � (signature) _���(license#) � ' �3�''C?3 (date) <br /> r .�,�. <br />