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' DOSING CHAMBER SIZING-10/25104 <br /> All boxed rectangles must be entered,fhe rest wi!!be calcuFated. W idth <br /> 1. Determine area <br /> A. Redangle area=L x W <br /> �� ft X �ft = 0 ft� � length �. <br /> B Cirde area=3.14 x radius2 <br /> 3.14 x Zft = QO fi� <br /> C. Get area 6om manuFacture it� Radius <br /> 2. Cakulate gallons per inch <br /> There are 7.5 gallons per cubic foot of volume,therefore muitipiy the area(1 A,B or C) <br /> times the conversion fador and divide by 12 inches per foot to calculate gallon per inch. <br /> Surface area x 7.5112= 0 tl� x 7.5 1 12inlft = 2p.0 gallon per inch Legal Tank: <br /> 500 gallons or <br /> 3. Caiculate totallank volume 100°k the dai{y flow <br /> A. Depth from bottom of inlet pipe to tank bottom = �;n or Alternating Pumps <br /> B. Total tank volume=depth from bottom of inlet pipe to tank bottom(3A)x gaVin(2) <br /> = 50 in x 20.0 gaVin = 1000.0 gallons <br /> 4. Calculate gallons to cover pump(with 2-3 inches of water covering pump) <br /> (Pump and blodc height+2 inches)x gailon per inch <br /> ( 19 + 2 in) x 20.0 gaUin = 420.0 gallons <br /> 5. Calculate total pumpout volume <br /> A. Select pump s¢e for 45 doses per day. Gallon per dose=gpd(see Figure A-1)1 doses per day= <br /> 375 gpd 1 �daseslday = 75 gallons <br /> A-1 Estimated Sewape Flows in GPD E-20 Vdume of Liquid in Pipe <br /> Numberof PipeDiameter Liquidperfoot <br /> Bedrooms Class I Class II Class III Class IV inches gallons <br /> 2 300 225 180 60°�6 d 1 0.045 <br /> 3 450 300 218 the 1.25 0.078 <br /> 4 600 375 256 values 1.5 0.110 <br /> 5 75D 450 294 in ihe 2 0.170 <br /> B 900 525 332 Class 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 1 Q5.0 ft � <br /> 2. Determine liquid volume of pipe, 0.17 gal/ft(see figure E-20) �� <br /> 3. Drainbadcquantity= 105.0 fl(561)'x 0.17 gaUfl(5B2)= 17.9 gal �jy,�,; «_<<:-�=:�s�<<<�«<=<<� _ <br /> C. Total pump out volume=dose volume(5A)+drainback(5B3) �-��� `� � � <br /> 75 gallons+ 17.9 gailons= 929 ga1 =� <br /> €< <_;��g_���:ii�; @ <br /> 6. Calculate float separation distance(using total pumpout volume) " <br /> Totalpumpoutvolume(5C)/gaUinch(2) «..._._____________ _____ ___�� <br /> 92.9 al I 20.0 ��u;f�':r�t; � � �_ <br /> g gallin = 4.6 inch €�i ° � - � �_ <br /> : �'�iiti�±'- - <br /> ,� =''� �v%�:i �E <br /> _� t�rc�� <br /> 7. Calculate volume for alartn(typicaHy 2-3 inches) ==�� <br />