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I'UMP SELECTION �ROCEDUR]E <br /> 1. Determine pump capacity: <br /> , A. Gravity distribution <br /> 1. Minimum required dischaxge is 10 gpm <br /> 2. Maximum suggested discharge is 45 gpm. For other <br /> establishments at least 10% 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 /> �. I'res�ure di�tril�ution <br /> See pressure c�istribution work sheet <br /> Fronn A or B Select�d pump capacity: �_ gpm <br /> 2. Determin� p�ump h�ad r�quirements: <br /> A. Elevation differeazce between pump and point of discharge? soi�treatment system <br /> �' feet &point of discharge <br /> a.oa, <br /> QIC 9 e 9�:. ���';M <br /> B. Special head requirement? (See Figure at right - Special Head Requirements) total pipe <br /> �� feet , length <br /> inlet �� • �"��°4 • 2A.elevation <br /> C. Calculate Friction loss pipe ,�..��I' difference <br /> =- ------- -- -- <br /> 1. Select pipe diameter 'a� in ` '� �.� <br /> ........... ....... . <br /> ---------------------------- ------ �`� <br /> Z. Enter Figure E-9 with gpm (lA or B) and pipe diameter(C1). <br /> Read fricHon loss u1 feet per 100 feet from Figure E-9 Special Head Requirements <br /> Friction Loss = ��`� ft/100ft of pipe Gravity Distribution 0 ft <br /> 3. Determine total pipe length fi-om pump discharge to soil h-eatment Pressure Distribution 5 ft <br /> discharge point. Estimate by adding 25 percent to pipe length for <br /> fitting loss. Total pipe length tirnes 125 = equivalent pipe lerigth <br /> E-9: Friction Loss in Plostic Pipe <br /> ���' feet x 1.25 = G�� feet Per 100 feet <br /> 4. Calculate total fi iction loss by rriultiplying friction lass (C2) nominal <br /> in ft/100 ft by the equivalent pip� length (C3) and divide by 100. pipe diameter <br /> - 3- `� ft/100ft x 4y`' =100 - 1 ft flow rate 1.5" 2" 3" <br /> - - pm <br /> I?. Total lzead required is the sum of elevation difference (A),special 2� 2.47 OJ3 0.11 <br /> h�ead requirements (B), and total friction loss (C4) 25 3J3 1.11 0.16 <br /> _ `-� ft+. a ft+ I ft - 30 5.23 1.55 0.23 <br /> 35 6.96 2.06 0.30 <br /> Tot�l h�aci: � �'� fe�t 40 8.91 2.64 0.39 <br /> 3. �'ump ��l�ctie��� 45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> 55 4.76 0.70 <br /> A pump must be selected to deliver at least�pm bp 5.60 0.82 <br /> (lA or k3)with at ]east L feet of total head (2D) 65 6.48 0.95 <br /> 70 7.44 1.09 <br /> ���f,." . <br /> �- "���{-���i'���' �"c?'�,- c�'�'1�� . <br /> I hereby certify that I have�Eompleted this work in accordance with applicable ordinances, rules and laws. <br /> i , � �� / <br /> ��_�---_. (,��.> � ,� '� ��_..T....__ (signature) �>`�:�jl.� (license#) � �o�,�"�>��t; (date) <br /> t. <br />