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' , , <br /> DOSING CHAMBER SIZING <br /> All bozed rectangles must be enfered,the rest wiB be ca�ulated. Width <br /> 1. Detertnine area <br /> A. Rectangle area=L x W <br /> � ft x, �ft = 0 it� Length <br /> B. Circle area=3.14 x radius2 <br /> 3.t4 x ZR = 0.0 it� <br /> C. Get area from manufacture it� Radiu <br /> 2. Calculate galbns per inch <br /> There are 7.5 gallons per cubic foot of volume,therefore multiply the area(1A,B or C) <br /> times the conversion factor and divide by 12 inches per foot to calculate gallon per inch. <br /> Surface area x 7.5I 12= 0� x 7.5 I 12in/ft = 21 gallon per inch Legal Tank: <br /> 500 gallons or <br /> 3. Calculate total tank volume 100%the daily flOw <br /> A. Depth from bottom of inlet pipe to tank bottom 47 in or Alternating Pumps <br /> B. Total tank volume=depth from bottom of inlet pipe to tank bottom(3A)x ga�n(2) ,��:�s���c�a«.p.,o�,,, ' <br /> = 47 in x 21 gal�n = 987.0 gallons �n �, �„�� �u� aa.�v <br /> 4. Calculate gallons to cover pump(with 2-3 inches of water covering pump) � � � z8e �r�`,►,. <br /> (Pump and block hei ht+2 inches)x gallon per inch s � � � � <br /> ( 12 + 2inj x 21 galfin = 294.0 gallons a 900 �s xs� a°"� <br /> 7 1050 600 S70 M.w III <br /> 8 1200 675 �l04 eduns. <br /> 5. Ca�ulate total pumpout volume <br /> A. Select ump size for 45 doses r day. Gallon per dose=gpd(see F'�gure A-1)/doses per day= <br /> �P1 gpd / �doseslday = 150 galbns <br /> B. Calculate drainbadc <br /> 1. Determine total pipe length 250.0 ft � <br /> 2. DeteRnine liquid volume of pipe, 0.17 gaVft(see figure E-20) <br /> 3. Drainbadc quanfity= 250.0 ft(561) x 0.17 gaUft(562) 42.5 y ��� Volume of Li uid in Pi <br /> C. Total pump out volume=dose volume(5A)+drainback(5B3) I'ipe Diameter Gallons per foot <br /> 150 galbns+ 42.5 gallons= 192.5 1 0.045 <br /> 125 0.078 <br /> 6. Calculate float separaGon distance(using total pumpout volume) 1.5 0.11 <br /> 2 0.17 <br /> Total pumpout volume(5C)I gaUnch(2) 2.5 025 <br /> 192.5 gal I 21 ga�n = 9.2 inch 4 0.� <br /> 7. Calculate volume for alarm(typically 2-3 inches <br /> Alartn depth(inch) x gallon�nch(2) = 3 in x 21 g�n = 63 gal <br /> 8. Ca�ulate total gallons=gallons over pump(4)+gallons pumpout(5C)+gallons alarm(7) <br /> 294.0 gai + 192.5 gal + 63 gal = 549.5 gal <br /> 9. Total tank depth=total gallons(8)I gallonCn(2)� � h <br /> 549.5 gallons I 21 gaUn = 26.2 p� � ` `€ <br /> eeenre cvpvcii <br /> � olann on <br /> � ` oonlid <br /> ------- - <br /> Ca�u ate reserve capaaty(75%of the daily flow) P�I�ut va�ine� €� p�-,p on <br /> Dai flow x 0.75 = 600 x 0.75= 450 allons � p ont a �� contra <br /> € <br /> I hereb 'fy th hav co ted this w�ork in aoc�rdance with all applicable ordinances,rules and laws <br /> (signature) �sO� picense#) (date) <br />