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� � -��r <br /> A. Dlb4m�te pamp cspadt'�: <br /> 1. Minimum sugge�ted is 600 gallons per hour(10 gprn) bo stay oE � , <br /> waee�r use rate. <br /> L Maxintum su�seed for ddivery b a drop box of a home is 2.700 <br /> $�llons Per hour t4S gp�)to pt�event build-up oE prnsure in rop box. <br /> 3. U�e value fronn daign of pre�su�diatribution 'ryatea�. <br /> SELECTED P[J11�CJ,PACITY�j_Spm p}��,� <br /> P�t ot Di�ctise� <br /> d.Debaa�l�e btad reqair�tu ' , � q v <br /> t. Etevadan diifia�+ae�pump�point of di�charge. ��D� <br /> L IE pumpin�to a presut�e distributlon sys�,add �ve ke!for prese�u�e �'o <br /> required at a�a�ifold , <br /> �_� �iab <br /> 3. Fr�etion bss . 13 iac6 2o i�eh 3.o inch <br /> � aioi.��.ta�e.t�. <br /> a. Enter friCtlor loss tabk wlth Epttt utd pipe diam�eter. 10 0.69 0.20• <br /> Re.d friction loes in feet per 100 feec from page R18. 12 0.96 o.2s <br /> F.L�=EL/100 h oE pipe - •�4 1.Z3 0.38 <br /> : b. Debcmine tOtal pIp!le:lgth Eeom piimp�D dixhat'g�e 16 1.63 0.4a <br /> potn� Add?S percent to pipe le�gtll for fltdng l E 2 0 3 0.6 0 <br /> toss.or use a Htting taas c1�ut Equivalenc pipe � 3 73 i:ii o:i6 <br /> length-1.ZS tlmes ptpe lengtft• �0 s.Z3 1.Ss a.Z3 <br /> �v x 1.25�_„(�„_feet 33 7•� 206 0.30 <br /> C. Ca1CnLte total friCtion loss atulti i ' 40 11.07 Z64 0.39 <br /> bY P Y�8 43 1a.73 3ZE o.a8 <br /> Erictfon la�s in k/100 R by equivalent pipe les�gth SO 3.99 O.SB <br /> Totil fziction lo�s� •5��,,,x�_+ipp s�_feet 6o s.6o 0 E2 ' <br /> 4. Total hesd required is the simt of devation diffe�ce, <br /> special had requi:,ements,and roal friction loa � <br /> ��+�-+�_ <br /> (1) (21 (3v <br /> TOTAL HFAD �_fett <br /> C. Pump selection <br /> 1. A pump must be sdec�ed to ddiver at lmst�_gpm (Step A) ' at least D�� <br /> J,�,_Eeet of total heed(Step B). Q*+�*m ecvw�oc �aws � o.LLONs ra orr <br /> �.+o� rrre or ��oewuu <br /> ecowoa.� t a � a <br /> D. Total Pumpont Volnme � 2 ,� �, �� � <br /> 1. To ma�dmize pump life select sump siu for 4 to 5 pump operado per day. , ; � � _� „�;,., <br /> 4 SO gpd+4= ! 1 � gallons per dose � *� ,� �• �:, <br /> Z. �,a�NV��IT1�C 7 IO60 '• i O j p •r <br /> 1. Determine total pipe lergth.��feet. • �2O0 •" •o• c•�• <br /> 2. Determine liquid wivau of pipe, 10 .Sgsllons per 100 feet. ( page F-18) F-18a � <br /> 3. Muldpiy length by voltu� Dninbacic quantity= at.maQ �,�es� c,nom ioo rx! <br /> �Eeet x �o•�gallons/loo E�•.�Sallons. 1 4.4 <br /> •Su�eated drainb�elc quandty is 10 pereent of pnmpad quantity. A lar6er d 'nbacSc 1.25 7.7•� <br /> percenage will dec�w puatp station efliciency slighdy but pumping en cnm are <br /> usuaily a rdatively small part of the tonl houxhold energy costs. 1.5 1�.5g <br /> 2 17.43 <br /> 3. Total pump out wlume equals dose volume+drainback 2.S 24.g7 <br /> ► � � ons per aose+ �gallons= I 1 S� To Gallong 3 3 8.4 <br /> 4 66.1 � <br />