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DOSING CHAMBER SIZING <br /> � 'All boxed redangles must be entered,the rest will be calculated. Width <br /> 1. Determine area <br /> A. Rectangle area=L x W <br /> � ft x �R = 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 fador and divide by 12 inches per foot to ca�ulate galbn per inch. <br /> Surface area x 7.5/12= 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 delly flOW <br /> A. Depth from bottom of inlet pipe to tank bottom 47 in or Altemating Pumps <br /> B. Total tank volume=depth from bottom of inlet pipe to tank bottom(3A)x g�n(2) �.,: &,,,,,Q,�S���,��,o,,, <br /> = 47 in x �1 gaUn = 987.0 galbns �� �� �i� ���i �iv <br /> 4, Calculate gallons to cover pump(with 2-3 inches of water covering pump) 2 300 � 'g0 60" <br /> 9 A50 30D 218 ofthe <br /> (Pump and block hei ht+2 inches)x galbn per inch " 600 "s �6 �°�'� <br /> s �so aso 2sa v,x,a <br /> ( 12 + 2 in) x 21 gal�n = 294.0 galbns � � sss �� c�tt�. <br /> 7 1050 b00 370 N,w NI <br /> 8 1200 675 40B cdurrrx. <br /> 5. Calculate total pumpout volume <br /> A. Select ump size for 4-5 doses r day. Galbn per dose=gpd(see F'gure A-1)1 doses per day= <br /> 600 gpd I 4 c doses/day = 150 gallons <br /> B. Calculate drainbadc <br /> 1. Determine total pipe length 20.0 R � <br /> 2. Detertnine liquid volume of pipe, 0.17 gaVft(see figure E-20) <br /> 3. Drainback quantity= 20.0 ft(5B1) x 0.17 gaUft(5B2) 3.4 y E-?U: Vi�lumc ol'Li uid in Pi <br /> C. Total pump out volume=dose volume(5A)+drainback(563) Pipe Diameter Callons per foot <br /> 150 gallons+ 3.4 gallons= 153.4 i o.o4s <br /> 1.25 0.078 <br /> 6. Calculate float separation distance(using total pumpout volume) �2 o.i� <br /> Total pumpout volume(5C)I gaUnch(2) 2� o:� <br /> 153.4 gal / 21 g�n = 7.3 inch 4 0.� <br /> 7. Calculate volume for alarm(typically 2-3 inches <br /> Alarm depth(inch) x galbn�nch(2) =�in x 21 g�n = 63 gal <br /> 8. Calculate total gallons=galbns over pump(4)+g�Ions pumpout(5C)+gaAons alarm(7) <br /> 294.0 gal + 153.4 gal + 63 gal = 510.4 gal <br /> 9. Total tank depth=total galbns(8)/gallonfin(2) • � <br /> 510.4gallons/ 21 ga�n = 24.3 ;ti-Y �������� ������� _ <br /> I- t- ayr���.���,p;:ity� ob�irn<�n <br /> Rec�mmended ,�rn ._ut �v�rna - - - - - - - :: =c�,r�u�_� <br /> Calculate reserve capacity(75%of the daily flow) � � ' '` � " --� <br /> <i... ............ ... . �: f���rr���._:r� <br /> Dail flow x 0.75 = 600 x 0.75= 450 allons u�rr���on f c`�r��rc� <br /> :.ontr.y <br /> I hereb rtify t I have compl d this work in accordance with all applicable ordinances,rules and laws <br /> (signature) �5 D� (license#) .3 (date) <br />