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. F-15R <br /> P_LIl1�SELECnON PR�CED TRF <br /> A. Detaatiae P�P nP�tT <br /> l. Minimua�sugge�t�d is 600 gallons per hour(10 gpm) co stay ahead oE � <br /> water use rate. <br /> 2. Maximua�sugg�ested for ddfvery b a drap box of a home system is?.,700 <br /> gallons pen c�ur(4S gp�+)to preveztt bnild-up of pr+essur+e in drop box. <br /> 3. Ux value from daign of pre.ssure distribudon syseenn. <br /> SELECI'ED P[J11�CAPACTIY�8Pm p�pa�,� <br /> 8.Dete�ine head reqniren�eala ' . <br /> Pbinc ol D v� <br /> 1. Devadon diga�erct between��point of di�chirge. IIewcan Diaerenca <br /> 2 If pumPin6 to a pre�a�e distr�'budon system,add Sve ket for prwure ^� <br /> required at aunifoid , <br /> ��� • F•18b <br /> 3. Fr'ktiOT1 bss .. 13 iach 20 i�ch 3.0 inel� <br /> a. Enter ftiction ioss tabk with E�and pipe diameter. �pm Pr�or.�..*.�oo R.rw. <br /> Reed frlCtiOn lOsd in feet pe!100 feet fi'om psge F-18. 10 0.69 OZO• <br /> F.L � � ft/100 ft oE t2 -�o.� o.2s <br /> a '= PiP� �ia �.zs o.3s <br /> ' b. Determine tOtal plp!letl�th ftOtll}7utltp b di3�Chatge - 16 1.63 0.48 <br /> poin� Add 25 per+ce�t to pipe le�gth for fltting 18 Z03 0.60 <br /> loss,or ux a Rttin lods charti valent 20 247 0.73 0.11 <br /> g � �� ?S 3.13 1.11 0.16 <br /> length-1.25 tlmes pi�e latgth• 30 S.?3 135 0.13 <br /> • 1 �i s_x 12S� 1 -`feei 3S 7.90 2.06 0.30 <br /> C. CalCnlate tOtal friCUlOn lOes multl 1 ' 40 11.07 Z64 0.39 <br /> bY P W�8 43 ia.r3 3.2s o.as <br /> friction loas in h/100 ft by equivaleat pipe length SO 3.99 OS8 <br /> 'fotal friction lo�s= I �� 1_x � .,=+100=�_feet SS 4.76 0.70 <br /> 4. Total head requirtd i�the sum of devation differes�ce, � S•� 0.82 <br /> special hesd requiremenb,and total friction loss. � <br /> �_+.��+_� <br /> . (1) (21 (3v <br /> TOTAL HEAD �"'1 feet <br /> C. Pump selection D_� <br /> 1. A pump must be sdected to ddiver at least � a gpm (Step A)with at least <br /> �_feet of total head(Step B). cst,M..m scw.o� n.ows m a.LLor+s w� aa. <br /> wi+ea rv►E or wesioeNc= <br /> . ��DAFOOM! t II � Q <br /> D. Total Puatpont Volume Z ,a, �, �� � <br /> 1. To maximize pump life select sump size for 4 ro 5 pump operations per day. . ' "O 7O° :�� °' <br /> � soo » x�s '°',�.. <br /> �v o gpd+4= �S O gaUoni per dose � � •� � T,�.:. <br /> 2. Calcvlate drainback `s ioeo �� d�oo ,3 0 ��' <br /> 1. Determine total len , r ti s" Eeet. • �soo sTs •o. c�,�,. <br /> P�P� S� <br /> 2. Determine liquid wlume of pipe, � �' gailons per 100 Eeet. (see page F-18) F-18a � <br /> 3. Muldpiy length by wlum� Drainbaeic quantity= et,n,e�r ;,,a,�,� c,Ua„ too rea <br /> I�l S Eeet x J„�gallons/100 f�_ �� gallons. j. 4.4 <br /> 'Suggested drainbacic quandty is 10 percent of pumped quandty. A larger drainbadc 1.25 7.7•� <br /> percenage will decreas�pump station effidenry siighdy but pumping mergy cosa are <br /> usuaily a relatively small part of the total houxhold energy coses. 1.5 1�.58 <br /> 2 . 17.43 <br /> 3. Total pump out wlume equals dose volume+drainback 2�$ 24.87 <br /> �o lons per dose+�c�gallong= i � C� Total Gallons <br /> 3 38.4 <br /> 4 66.1 � <br />