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. � � <br /> catine pamp capacii3►: . <br /> Minimum sugg,�sted is 600 gaIlons per hour(IO gpm) to stay ahead of <br /> � water us�rate. <br /> Maximum sugg�ested for ddivery b a drup box of a home syatem is 2,7pp <br /> Sa P��(45 gpm)to.Pr+e�►ent build-up of pressure in drop box. <br /> 3. Use value from design oF pressure dist�����, :�.��{� <br /> SELECZ'ED PtJ11�CAPACITY J �� "'J %Jj,4' - � �,t,��. '�.:.,,�;•� <br /> � Pfpe Laz6rh � <br /> B. Determine head nqnisemestt� � <br /> 1. IIevatlort d1��tyy�1_:�a���t Of d�3C�1gt�. Point of Disrh� <br /> Z If � � IIeYadoa DiSe�a,c� �5 % <br /> n4�red a�manifo1P�dist�Ibution system,add Hv�s fee!for pressure .` <br /> _S 'ftet <br /> 3. Frictfon loss F-isb <br /> a. Enttr frfction Ioss table with 1S inch ZO inch 3.0 inch <br /> Read frictian loss in feet per IOO�feet�fr�r�iz�d�netrr./o�,ti� �" �`�`��°"°"'�oo rt d o;P. <br /> F.L a�ft/100 h of pij�E► �� �' � 10 0.69 0.20- <br /> ' b. Determine total pipe Iength from pump to dischar� ���) '14 %2s o.3g <br /> point. Add?5 per�t to pip�1���r fittlng � 16 1.63 o.a8 <br /> loss,or use a fitting loss�� 18 2.03 0.60 <br /> len - l,y �� ���t��' � 247 0.73 0.11 <br /> � ��l�� 30 5.13 1.SS 0.23 <br /> • � x 1.2�s "i" '� f� 35 7.90 <br /> c Cakzilate total friction loss by mu��ply{�g 2a6 0.30 <br /> frictfon lass in ft/100 ft � il.� 2� 0.39 <br /> ��Vdlellt ��1211gth. 14.73 3.Z8 0.48 <br /> TOtal friCboa loss a �-=�f'-- x-.�1�+;00 a f � �•� O.SB <br /> 4. Total head requutd the sum of elevat[on difference, feet SS � 4.76 0.70 <br /> specia!head requirements,and total frlc�tion lo � ' � s.6o Q.s2 <br /> � � '� + �� � <br /> � �5 + � . . <br /> � (1) (21 (3� <br /> TOTAL HFAD I�+�feet . � <br /> C. Pump selection . <br /> 1. A pump must be selected to deliver at least� � <br /> U D-7 <br /> J��Eeet of totai head(Step B). ---� �tep A)with at least <br /> • anwTID sEy�.,� Ftows iN a+u.ons �v+ car � <br /> D. Total Pumpout Volume ""1M°a T�'�t or ����a <br /> o�a � a � Cz <br /> i. To maximize pum�life select sump size r 4 to 5 um o 2 JO� � �so .o,; <br /> �_�+4� p P P�dons per day. , � 4�0 <br />'_. Catculate dzainbark S�Ons per dose r,�-,'� �� � 2�° ��� <br /> 1. Detennine total ` �'°°' ,_, u r'�r. <br /> PiPe�efl�l,3•`ft'�t, � io�o � soo „o o, <br /> 2. Determine lfquid volume of ° 12O° sT� ,aa ��01�.,. <br /> PtPe•�� �` galIons per 100 feet. (see a ��.,• <br /> 3. Muldply length by volum� Drainbacic quanti�,�� P �F;8� F-18a � <br /> � fe8t x �'_ 7`Fggj]pit3/100 ft.= CO diamna nc�es t c a l tonz I00 rees <br /> Suggcsted drainback qvantity is 10 percesu of m � 8�On3. j <br /> arencage will decrease s � P�Q ndty. A larger drafabacic 4.4 <br /> suatly a reiatively smatl�art of thetotal houseryhold�Y but puaipin8 e�Q.�, ��� j.25 7.77 <br /> es'gy cosb. � � <br />. Tota��mp out volume equals dos�volume+drainback <br /> � 2 -' =�l 7.�l3 ' <br /> c�:� llOns per dOse+��J �png a � <br /> � Total Gallor�s 2•S 2 4.$� <br /> . � 3 38.4 <br /> . � 4 '� 66.1 <br />