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� � � DOSING CHAMBER SIZING <br /> � ' All boxed rectangles must be entered,the�st will be calculated. Width <br /> 1. Determine area <br /> A. Rectangle area=L x W <br /> � R x �ft = 0 ft Length <br /> B. Circle area=3.14 x radius2 <br /> 3.14 x Zft = 0.0 ft <br /> C. Get area from manufacture ft� Radiu <br /> 2. Calculate gallons 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 7.5/12= 0 ft x 7.5 / 12inlft = 31.25 gallon per inch Legal Tank: <br /> 'Assumed 25 galbns per inch 500 gallons or <br /> 3. Calculate total tank volume 100%the daily flow <br /> A. Depth from bottom of inlet pipe to tank bottom 48 in or Altemating Pumps <br /> B. Total tank volume=depth from bottom of inlet pipe to tank bottom(3A)x galfin(2) ,4,:r��a s,�.r�.ti a�P.oo„ <br /> = 48 in x 31.25 gal�n = 1500.0 gallons �� �� �� ��� �N <br /> 4. Calculate gallons to cover pump(with 2-3 inches of water covering pump) 3 � 3�0o ie d�it,� <br /> (Pump and block hei ht+2 inches)x gallon per inch s � � �,� �` <br /> ( 12 + 2 in) x 31.25 galfin = 437.5 gallons � 900 � � �� <br /> � ioso boo �a �.«�i <br /> 8 1200 676 408 ca►mr. <br /> 5. Calculate total pumpout volume <br /> A. Select ump size for 4-5 doses r day. Gallon per dose=gpd(see Figure A-1)/doses per day= <br /> 900 gpd I 5 e doses/day = 180 gallons <br /> B. Calculate drainback <br /> 1. Determine total pipe length 140.0 ft � <br /> 2. Determine liquid volume of pipe, gallft(see figure E-20) <br /> 3. Drainback quantity= 140.0 ft(5B1) x 0.17 gal/ft(5B2) 23.8 v E-2A: Volume of Li uid in Pi <br /> C. Total pump out volume=dose volume(5A)+drainback(5B3) �PQ�ameter Gallons per foot <br /> 180 gallons+ 23.8 gallons= 203.8 1 0.045 <br /> 1.25 0.078 <br /> 1.5 0.11 <br /> 6. Calculate float separation distance(using total pumpout volume) 2 o.i7 <br /> Total pumpout volume(5C)I gal�nch(2) 2.5 0.25 <br /> 203.8 gal I 31.25 gal�n = 6.5 inch 4 0.� <br /> 7. Calculate volume for alarm(typically 2-3 inches <br /> Alarm depth(inch) x gallon�nch(2) = 3 in x 31.25 gal�n = 93.75 gal <br /> 8. Calculate total gallons=gallons over pump(4)+gallons pumpout(5C)+gallons alarm(7) <br /> 437.5 gal + 203.8 gal + 93.75 gal = 735.1 gal <br /> 9. Total tank depth=total gallons(8)/gallon�n(2) � � <br /> inet ` "` " ` <br /> 735.1 gallons/ 31.25 ga�n = 23.5 p� <br /> € eaerve capacl aartn on <br /> Recommended � ------- _" contra <br /> o pvnpout vdiine. <br /> Calculate reserve capacity(75/o of the daily flow) - p___p ___ ____« pimp on <br /> � � um ott � corfird <br /> Dail flow x 0.75 = 900 x 0.75= 675 allons € corrtra� �€ <br /> I hereby ce ' e co d this work in accordance with all applicable ordinances,rules and laws <br /> (signature) ��7i� (license#) B��S (date) <br />