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. . - E � r <br /> Sizing of Pum� Station <br /> 1. Dctrrminc Surfacc Arca T <br /> Rcctanglc=Arca= L x W W���h <br /> x = square feet �•�nsih <br /> 1 <br /> Cirde= Arca=n x(Radius)1 <br /> 3.14 x x = square feet Radius <br /> Other=Cet Surface Area from Manufacturer a=3.ta <br /> squaze feet <br /> 2. Calculate Gallons Per Tnch <br /> There am 7.5 gallons per cubic foot of volume,thcrcfore you must multiply the area <br /> times the conversion factor and divide by 12 inches per fcx�t to calculate gallons per inch <br /> Ama x 7.5 gpft'+12 inchs per foot <br /> x 7.5+12 =�� gallons/inch <br /> 3. Calculate Gallons to Cover Pump(with 2 inchcs of watcr covcring pump) Estimata!Scwagc Flows in Gallons per d•ry <br /> (Height i +2 in es) x allons/in (#2) �g�� <br /> (�+�)x�_�� allons um r <br /> $ of Type I Typc I[ Type II( Ty pc <br /> Bedrooms 1 V <br /> 4. Calculate Total Pumpout Volume <br /> a. To maxim e pump life selec size for 4 to 5 pump operations per day. 3 4S0 300 21�8 � <br /> ��gpd+4= gallons per dose 4 600 375 256 °r`�" <br /> b. Calculate drainback <br /> S 750 45U 294 �';,,� <br /> p p g � 6 900 525 332 �Yr��. <br /> 1. Determine total i e len th � feet. 7 1050 600 370 "`" <br /> 2. DeMrmine liquid volume of pipe/��gallons per 1(Hl fcY�t. 8 1200 675 408 W w,,,,� <br /> 3. Multi�ly length bJ}�volgme: Drainback qy�tit�y= � <br /> �Q,feet�y(� allons/100 ft.—� allons. <br /> P' dhmaa inchcs Gailuu r!00 fl;c� <br /> c. Total pumgo volume equals dose volu e+drainback <br /> � d allons per dose+�gallons��gallons 1.25 7.77 <br /> 1.5 10.58 <br /> 5. Calculate Volume for Alarm(typicaliy 2 to 3 inches) 2 17.43 <br /> De th(in)x a�ons/inch #2)= 2.S 24.87 <br /> �xg z =�gallons q ��.1 <br /> 6. Calculate Reserve Capacity(75%the daily flow} <br /> Dai flo (see page D-7)x.75= <br /> �� x.75=��gallons <br /> 7. Calculate total gallons Rcservc Capacity <br /> gallons over pump+gallons pumpout+gai�c7ns alarn�+gallons reserve capcity <br /> #� �c+#5� � ��z _ ,_., , g Alarm <br /> + + + /D// allons <br /> Pump On <br /> 8. Total Depth (Total gallon dividcd by gallan per inch) <br /> Totaj�n(#f 7)+�allo nch(#2) To I Pumpout Volumc <br /> / + 20 inches Pump Of� <br /> Pump Height <br /> 9. F7oat Separation Distance(equal total pumpaut vc�lumr) <br /> Total umpout volume(#4c)+gallons/inch(#2) <br /> /�+�_�inches <br />