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� ` " DOSING CHAMBER SIZING-(BED DOSING) <br /> All boxed rectangles must be entered,the rest will be calculated. Width <br /> 1. Determine area <br /> A. Rectangle area=L x W <br /> � ft x �ft = 0 ft a <br /> Length <br /> B. Circle area=3.14 x radius2 <br /> 3.14 x �- 2 ft - 0.0 ft <br /> C. Get area from manufadure ft Radius <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 /> Gmes the conversion factor and divide by 12 inches per foot to calculate gallon per inch. <br /> Surface area x 7.5 I 12= 0 ft� x 7.5 / 12in/ft = 25.0 galion per inch Legal Tank: <br /> 500 gallons or <br /> 3. Calculate total tank vdume 100%the daily flow <br /> A. Depth from bottan of inlet pipe to tank bottom = 42 in or Alternating Pumps <br /> B. Total tank volume=depth from bottom of inlet pipe to tank bottom(3A)x gal�n(2) <br /> = 42 in x 25.0 gal�n = 1050.0 gallons <br /> 4. Calculate gallons to cover pump(with 2-3 inches of water covering pump) <br /> (Pump and block hei ht+2 inches)x gallon per inch <br /> ( 10 + 2 in) x 25.0 galfin = 300.0 gallons <br /> 5. Calculate total pumpout volume <br /> A. Select pump size for 4-5 dases per da . Gallon per dose=gpd(see Figure A-1)l doses per day= <br /> 450 gpd / -Y5�dases/day = 90 gallons <br /> A-1 Estimated Sewage Flows in GPD E•20 Volume of Liquid in Pipe <br /> Number ol Pipe Diameter Liquid per foot <br /> Bedrooms Class I Class II Class III Class IV inches allons <br /> 2 300 225 180 60%of 1 0.045 <br /> 3 450 300 218 the 1.25 0.078 <br /> 4 600 375 256 values 1.5 0.110 <br /> 5 750 450 294 in the 2 0.170 <br /> 6 900 525 332 Class I, 2.5 0.250 <br /> 7 1050 600 370 II or II 3 0.380 <br /> 8 1200 675 408 cdum�s 4 0.660 <br /> B. Calculate drainback <br /> 1. Detertnine total pipe length 157.0 ft <br /> 2. Determine liquid volume of pipe, 0.17 gal/ft(see figure E-20) �� <br /> ��'T��-C1"��(�T'T':T��.^.�v�'� <br /> 3. Drainback quantity= 157.0 ft(5B1) x 0.17 gal/ft(582)= 26.7 gal ,��_,.��- ---= = � <br /> C. Total pump out vdume=dose vdume(5A)+drainbadc(563) }�.:•_ ;:;; �_ <br /> 90 gallons+ 26.7 gallons= 116.7 gal `��! _ . <br /> ; :, . , ��I <br /> 6. Calculate float separation distance(using total pumpout volume) ��; � <br /> << zII <br /> <<: ��� <br /> Total pumpout volume(5C)/gallinch(2) ! :,_, ' ,j k_ <br /> 1167 gal I 25.0 galfin = 4.7 inch �;sl � `'� .. +. � <br /> ��: _cr;tr,_+ - �, <br /> 4-rrrrrr-r-rri�-r-crr-�f i-�-�� 1 <br /> 7. Caiculate vdume for alarm(typically 2-3 inches) •" - �"":`:��--�"�'`=y````�� <br /> Alarm depth(inch) x gallon�nch(2) _ �in x 25.0 gal(in = 75 gal <br /> 8. Calculate total gallons=gallons over pump(4)+gallons pumpout(5C)+galions alartn(7) <br /> 300.0 gal + 116.7 gal + 75.0 gal = 491.7 gal <br /> 9. Total tank depth=total gallons(8)/gallon(n(2) <br /> 491.7 gallons/ 25 gaUn = 19.7 in <br /> Recommended <br /> Calculate reserve capaaty(75°/a of the daily flow) <br /> Dail flow x 0.75 = 450 x 0.75= 337.5 allons <br /> I hereby rtify that I ha pleted this work in accordance with aii applicable ordinances,rules and laws <br /> (signature) �� picense#) '�(date) <br /> Page 1 of 1 <br />