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Sizing o r=12 Station <br /> 1. Determine Surface Area <br /> T <br /> Rectangle=Area=L x W Width <br /> x = square feet -1- <br /> Lenglh <br /> Circle=Area=x x(Radius)' <br /> 3.14 x x = square feet <br /> Radius <br /> Other=Get Surface Area from Manufacturer x=3.14 <br /> square feet <br /> 2. Calculate Gallons Per Inch <br /> There are 75 gallons per cubic foot of volume,therefore you must multiply the area times the <br /> conversion factor and divide by 12 inches per footto lculate gallons per inch <br /> Area x 7.5-#-12 /a o <br /> x7.5+12 = Z S gallons/inch M u <br /> 3. Calculate Gallons to Cover Pump(with 2 inches of water covering pump) Scw,.ec flow in talons per Day(xpd) <br /> (Height(in)+2 inches)3 gallons/inch Nurnbc <br /> ( fo +2 x Z=� �d•0 gallons of 7Ypc 1 iypc II Type to rypc tv <br /> Bcdroonu <br /> 2 300 225 180 bay <br /> 3 45a-- 300 218 of <br /> 4. Calculate Total Pumpout Volume `4 6W__ 375 256 <br /> A. To ximize pump life select sump size for 4 to 5 pump operations per day. 750 Oso 2,14 <br /> 6 9W 525 332 U. <br /> gpd+4= gallons per dose 7 1050 61,0 370 , <br /> B. Calculate drainback 8 1200 675 '409 <br /> a. Determine total pipe length.J30 feet. <br /> b. Determine liquid volume of pipe,17 `/ gallons per 100 feet. (see page F-13) r-dor <br /> c. Multiply length by volume: Drainback quantity= -"614.44 <br /> ,1,J0 feet x f77,ti gallons+100 ft._, (�gallons. : ..2,3fa-Y 1.s ion <br /> C. Total pump out volume equals dose volume+drainback -�2-5 ' -----24.S7 <br /> /�a gallons per dose+ Za gallons= Total allons 3 38.4 <br /> `— 4 06.1 <br /> 5. Calculate Volume for Alarm(typically 2 to 3 inches) <br /> Depth(in)x gallonshinc = Reserve� r <br /> j_x C,; _ gallons Vr <br /> '4 �C /S,3 <br /> 6. Calculate Reserve Capacity(75% the daily flow) Y n1„nn <br /> Daily flow(see page D-7)x.75 Vr Pump On 7 -c <br /> �Qo x.75= ySo gallons �} <br /> /7�y cl To&I Pumpau Volumr. /_ Q <br /> 7. Calculate total gallons Vpu,,,P Off I ` <br /> ----- <br /> gallons over pump+gallons pumpout+gallons alarm+gallons reserve Purnp ciao ' <br /> 3+4+5+6 <br /> .3 c; +�?- T + S O -- gallons t� �- <br /> /Ooo 0-S <br /> 8. Total Depth (Total gallon divided by gallon per inch) <br /> Total Gallon+gallon/inch <br /> /OGa + L�� = I/o inches <br /> 9. Float Separation Distance(equal total pumpout volume) <br /> Total purn t volume+gallons/inch <br /> + .� <br /> inches <br />