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� � � . PUMP SELECTION PROCEDURE <br /> 1. �Determine pump capacity: <br /> A. Gravity distribution <br /> L Minin�um required discharge is 10 ���ii� <br /> 2. Maximum stiggested discharge is 45 ��m. For other <br /> establishments at least 10% greater than tl�e �vater supply rate, <br /> but no faster than the rate at which effluent ���ill flo��� out of the <br /> dis'rribution device. <br /> B. Pressure distribution <br /> See pressure distr�ibutio�2 wor�k sheet <br /> From A or B Selected pump capacity: / � gpm <br /> 2. Determine pump head requirements: <br /> A. Elevation difference bet��een pump and point of discharge? soil treatment system <br /> &point of discharge <br /> � I feet a��a`��_a� <br /> B. Special head re�uirement? (See tigiire nt right - Special Head Requirements) total pipe <br /> length <br /> � feet 2A.elevation <br /> inlet ` *` difference <br /> C. Calculate Friction loss pipe .: <br /> ------- -;� <br /> 1. Select pipe diameter o�. in `� <br /> .. .. ............... ... <br /> , <br /> - ------------ ------ <br /> ,,� �---------------- <br /> 2. Enter Figure E-q��ith g-pm (lA or B) and pipe diameter (C7.). <br /> Read friction loss in feet per 100 feet from Figure E-9 Special Head Requirements <br /> Friction Loss = • .�'3 ft/100ft of pipe Gravity Distribution 0 ft <br /> 3. Determine total pipe length from pump discharge to soil rreatment Pressure Distribution S ft <br /> discharge point. Estimate by adding 25 percent to pipe length for <br /> fitting loss. Total pipe length times 125 = equivalent pipe length <br /> rE-9: Friction Loss in Plastic Pipe <br /> �f�_feet x 1.?� _ �_fe�t � <br /> Per 100 feet <br /> 4. Calctilate total friction loss b�� mtiitiplying friction loss (C2! nominal <br /> in it/100 t't bv the equ;valent pipe length (C3) and c�i�'ide bv ll)U. pipe diameter <br /> _ , -� 3 ` " flow rote 1.5° 2" 3" <br /> _ __ tti�1(l�ft x �CU =10G = __ � f� pm <br /> D. T�c�tal head recuired :s lhe st._m ef ele��ation diH�rence (A), s}:�rcial 20� 2.47 �'0.7 0.11 � <br /> he�d requiremcnt� (�), an;7 total frict�on ]oss (C4` 2� 3J3 1.11 0.16 <br /> --L� f h ' I'" 5.23 1•.55 0.23 <br /> --- ---`----'}t -- --�----r t =:. �v�� <br /> 3� 6.96 2.06 0.30 <br /> TOId� 1?E'3c�: -- _.L--`-- ;�et 4C 8.91 2.64 0.39 <br /> , ...-...�..._._......_._._._,� <br /> - ------- ----- <br /> R �47 1 1.07 3.28 0.48 <br /> �i3. Puri�p se��c�ct�c���t ; - <br /> �; ; '��; 13.40 3.99 0.58 <br /> I � 4.76 OJO <br /> �� ��. �.� , , ,��� . ,� �I� �- '�� '.r��i�. f�r ��1 1�����f �_� _����rz� �� � 5.60 0.82 <br /> Fi . _... '___ , . <br /> � \ ... ' .. . fi`f'f i?j il)f�ll �Zl'�l:j „��-,,. <br /> �� � , , f�� ��:� i,- r� a� 0�5 <br /> , , <br /> �'� --- - _ _ _ _ _-- -_ -----------------' � <br /> ---- 44 1.09 <br /> __..__..�Y.....�__....__..�....w�,..._. _.__.__ _---- ---' <br /> ___ _, :n� � .,i� ;�, , rii �� , .in�] I�,t�. -- ^I <br /> i . �/ i <br /> : <br /> . . ,� � <br /> � _- <br /> , _�- <br /> � , �.; ,_ ,, . � : .. � ��,<<, <br /> , . � „ . , � � <br /> ` <br /> . , , _ <br /> -� --- ------ <br /> „�. _____ <br /> � <br />