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A. Deteratiae pnmp capadtq: <br /> ]. Minimum sugge�ttd is b00 gallon�per hour(10 gpm) to stay ahead of � <br /> waCez use rate. <br /> 2. Ivlaximum suggested for ddiv+Qy ca t drvp box of a home system is 2.700 <br /> gall�m pen c�ur t45 gpm)to preveat bwld-vp oE pressut+e in drop box. <br /> 3. Ux value hvm de�ign oE pcnsure diatribution rystem, <br /> SELEtTED PTJMP CAPACTIY�Q,_g�m p�p��,�„� <br /> � , <br /> B.Detaasi:te htad reqnirtmeat� � ��o Pbi�c a[Dischsrg <br /> 9vV� <br /> 1. EIevadon diff�r�between puntp�point oE di�rgt. F.i.r.�ion Di�es <br /> 2. If pumping to a pressure distnbutlon system,add Sve feet for pttssure . 9'`.< <br /> r�e�uired at manifold , <br /> ' - •� R1Eb <br /> 3. Friciion lo� , 13 iaelt ZO i� 3.0 i�h <br /> a. Enter friction lo�e tabk with � and diame�er. tpm ��••r•tooelw. <br /> � �� 10 0.� 0.20- <br /> Read friction loss in feet per 100 feet from page F-18. 12 0.% 0.28 <br /> F.L = �•�ft/1C0 ft oE pipe -14 1.28 0.38 <br /> '. b. Determine total gipe length from pamp to discfiarg�e � 16 t.63 0.48 <br /> . pvin� Add 25 perc�t to pipe lengtti for Rtting . t8 2.03 0.60 <br /> ' loss.or use a fitting loss ct�art. Equivateat pipe � �-4� 0.73 0.11 <br /> 2S 3.73 1.11 0.16 <br /> � lengttt-1.25 times P�P�1�$th' 30 S.?3 1.3� 0.23 <br /> � 3 O x 1.25�� /�_feei 3S 7•40 206 0.30 <br /> c. Calculate total friction loss by muliipiying 40 11.07 Z64 039 <br /> 43 14.73 3.2a 0.48 <br /> fridion loss in EtJ100 R by equivalent pipe leagth 50 3.99 O.SB <br /> Total friction loss= �•� x�_+1pp��f� SS � 4.76 0.�0 <br /> 4. Total head required i�the sum of devation differ�cr, � � � 5.60 0.�2 ' <br /> special hesd requiremenb,and rotal friction Ioss. � � <br /> / 9. + - +_�t___ <br /> (1) (?J (3cJ <br /> 'fOTAL HEAD �,��feet <br /> C. Pump selettion D-7 <br /> 1. A pump must be sdected to deliver at least ' O gpm (Step A)with at least <br /> �,feet of tntal head (Ste� B). ar,w•*m scw.a� .L.ows i« caLLo�.s .a o�nr <br /> raao.eFer rr►e aF �ees�oa+e=a <br /> ��� � a as a <br /> D. Total Pumpout Volume ' 2 � � �� � <br /> 1. To maximize pump life�ezt sump aiu for 4 to 5 pump operadons per day. , ' `� � :,. « <br /> �oo gpd+4= � So gallons per dose � � � � �:t. <br /> 2. Calc�llate drainbac.ic r �veo eoo zro <br /> 1. Determine total pipe length. I 3 o feet. ' 12DO "� 'a e�•�• <br /> 2. Deternvne liquid voiume oE pipe, gailons per 100 feet. (See pagt F-18) F-18a <br /> 3. Multipiy length by wium� Drainbacic quantity= e�,Q,�,� ;,,a,�,► c,uo�u ioo r� <br /> I 30 fert x �gallons/100 fL =�,3_gallons. 1 4.4 <br /> 'Suggr3ted drainbacic qt:antity is 10 pa�cent of pumped quantity. A larges drainbacic 1.25 .�..�.� <br /> pc�centagt will d�pump station effideacy siighdy but pumpiag energy rnsts are <br /> usually a relativeiy small part of the tota! household es�erg�y rnsts. 1.5 I0.58 <br /> 2 17.43 <br /> 3. Tatal pump out wlume equals dose vvlume+drainbac�c 2„5 24.87 <br /> � S�lons per dose+ a� gallons= � � 3 T'ota!Gallons 3 3$.4 <br /> .; 4 66.1 � <br /> � - - <br /> �;, . <br />