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� DOSiNG CHAMBER SiZING-18125/04 <br /> All boxedrectangles mustbe entered,the resf wiNbe caiculated Width <br /> 1. Determine area <br /> A. Redangle area=L x W <br /> �� ft x �ft = � � ' Length - <br /> B. Cirde area=3.14 x radius2 <br /> 3_14 x Zft = 0.0 fl <br /> C. Get area from manufadure ft Radius <br /> 2. Calwlate gallons per inch <br /> There are 7.5 gallons per cubic foot of volume,therefore muttiply the area(1 A,B or C) <br /> times the cornersion factor and divide by 12 inches per foot to calculate gallon per inch. <br /> SuAace area x 7.5112= 0 fi� x 7.5 ! 12inlft = 15.0 gallon per inch Legal Tank: <br /> 500 galions or <br /> 3. Calculate totai tank volume 100%the daily flow <br /> A. Depth from bottom of inlet pipe to tank bottom = �in or Alternating Pumps <br /> B Total tank volume=depth from bottom of iniet pipe to tank bottom(3A}x gaUin(2) <br /> = 50 in x 15.0 gallin = 750.0 gallons <br /> 4. Calculate gallons to cover pump(with 2-3 inches of water covering pump) <br /> (Pump and blodc height+2 inches)x gallon per inch <br /> ( 19 + 2 in) x 15.0 gallin = 315.0 gallons <br /> 5. Calculate total pumpout vofume <br /> A. Select pump s¢e for 45 doses per day. Gallon per dose=gpd(see Figure A-1)I doses per day= <br /> 300 gpd t �doseslday = 60 gallons <br /> A•1 Estimated SeMrage Flows in GPD E-20 Vdume of Liquid in P'ipe <br /> lJumberof PipeDiameter Liquidperfoot <br /> Bedrooms Class I Class II Class III Class IV inches gallons <br /> 2 300 225 180 60%of 1 0.045 <br /> 3 450 300 218 the 125 0 078 <br /> 4 600 375 256 values 1.5 0110 <br /> 5 750 450 294 in the 2 0.170 <br /> 6 gpp 525 332 Ctass I, 2.5 0250 <br /> 7 1050 600 370 I I or II 3 0.380 <br /> S 1200 675 408 columns 4 0.660 <br /> B. Calculate drainbadc <br /> 1. Determine total pipe length 70.0 ft - - <br /> 2. Determine liquid volume of pipe, 0.17 gallft(see figure E-20) E���_�� � " <br /> 3. Drainbadc uantit 70.0 fl 581 x 0.17 alfft5B2 - 11.9 al , c° ==°�=��°°�°°�="-`-� '` <br /> 9 Y= � ) 9 � )- 9 iYit� �� <br /> C. Totai pump out volume=dose volume(5A)+drainback(5B3) ���x= �� <br /> 60 gallons+ 11.9 gallons= 71.9 gal :� c_;,��,:���ii y � <br /> Ct <br /> C <br /> 6. Calculate float separation distance(using total pumpout voiume) z' "- <br /> TWaI pumpout volume(5C)1 gaVinch(2) € �••�- - --.-w;r-' € <br /> 71.9 gai 1 15.0 gaVin = _��x� �� ����°{j�r: f � <br /> `� >��st�;_a r. ` <br /> CC Yi'�[ <br /> 7. Calculate volume for alarm(typically 2-3 inches) <br /> Alarm depth(inch) x galloNinch(2) _ �in x 15.0 gaVin = 30 gai <br /> 8. Calculate total gallons=gallons ouer pump(4)+galions pumpout(5C}+gatlons alarm(� <br /> 315.0 gal + 71.9 gal + 30.0 gai = 416.9 gal <br /> 9. Total tank depth=total gallons(8)f gallonlin(2) <br /> 416.9 gallons! 15 gaVin = 27.8 in <br /> Recommended <br /> Calculate reserve capacity(75°k of the daily flow) <br /> Daily flow x 0.75 = 300 x 0.75= 715 gallons <br /> I hereby certrfy that I have completed this work in acoordance with aii applicable ordinances,rules and laws <br /> (signature) � 0 � (license#) ��_(date) <br /> • Page 1 of 1 <br />