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DOSING CHAMBER SIZING <br /> 1. Determine area W,dth <br /> A. Rectangle area = L x W <br /> x __ = _square feet <br /> B. Circle area =n (3.14) x radius in feet x radius in feet - ``°6th <br /> 3.14 x ft x ____ft = sgft <br /> C. Get area from manufacturer SL <br /> Radius <br /> 2. Calculate gallons per inch <br /> There are 7.5 gallons per cubic foot of volume, therefore multiply the area OA, B or C) <br /> times the conversion factor and divide by 12 incheser foot to calculate gallon per inch. <br /> Area x 7.5+12 = _ sqft x 7.5= 12 in/ft = Z5•y gallon per inch <br /> 0-v�llr—lk — too ��Q Legal Tank: <br /> 3. Calculate total tank volume 500 gallons or <br /> A. Depth from bottom of inlet pipe to tank bottom__in ow f <br /> Daily 00% the at,1 l <br /> B. Total tank volume= depth from bottom of inlet pipe to tank bottom(3A) x gal/in(2) 1 <br /> in x __'z.5___gal/in = /MQOgal or <br /> Alternating Pumps <br /> 4. Calculate gallons to cover pump (with 2-3 inches of water covering pump) <br /> (Pump and block height +2 inch) x allon/inch A-1:listimoledSewogeFlows ulGauonsperDay I <br /> (Qin+2 in) xgal/in=3 gallon numbero <br /> bedrooms Class I Closs II Coss III Clou IV <br /> 5. Calculate total pumpout volume 2 300 225 180 60% <br /> A. Select pump size for 4-5 does per day. Gallon per dose= gpd (see figiire A-1) 300 218 of the <br /> / doses per day CDG gpd- 5 doses/day= ZU gallons <±4 -600j 315 25o voiues <br /> B. Calculate drainback 5 150 450 294 mine <br /> 1. Determine total pipe length, (0 ''S feet 6 900 525 332 Ciossi. <br /> I.oi Ilk <br /> 2. Determine liquid volume of pipe,d./ gal per ft(see figure E-20) J 1 1050 600 037C ol, <br /> 3. Drainback quantity Ito 4_ft(5131) xQ L7-gal per ft(5B2)_ gal B 1200 615 408 c°' <br /> C. Total pump outvolume = losvolume(5A) +drainback(5133) <br /> /Z,v g al + 2 a1 = _/�f Total gallon E-20: Volume of Liquid in Pipe <br /> Pipe Diameter!, Gallons per foot'. <br /> 6. Float separation distance(using total pumpout volume) P . <br /> inches <br /> Total pumpout volume(5C) -gal/inch (2) �� <br /> gal —Z, -___gal/in= S� q inch = GA 1 0.0 <br /> 45 1.25 i 0.07b78 <br /> 7. Calculate volume for alarm (typically 2 to 3 inches) <br /> Alarm depth(inch) x gallon/inch (2)_ -2in x ZS gal/in) = 7 S gal 1 .17 <br /> 2.5 <br /> 8. Calculate total gallon = galloms over pump (4) + gallons pumpout(5C) * gallons alarm (7) 3 0.38 <br /> -o gal + /a 9--gal + ----'7��--gal = S Z 3 gallons 4 0.66 <br /> 111 P <br /> 9. Total Tank Depth= total gallon (8)-gallon/inch (2) <br /> /0001 oc.:d al ZS-- gal/in in s <br /> inlet �'ii'r,'�."v�:,'rr,Y•'•9�: .FA1: Y,<�; <br /> r <br /> jg <br /> pi pe eserve ca city <br /> Recommended: <br /> $4 7719 <br /> alarm c <br /> Calculate reserve capacity (75% the daily flow) �,� _ _ _ _ _ _ _ _ _ control <br /> Dail flow x .75 = (ooc� x .75 = `�5 gallons <br /> Daily -- pumpout volume� r; <br /> eVA pump on <br /> pump off control <br /> 3ooc n of �f <br /> 1� :, 1�:f:t'.l�,fl: • .l 1:ri.•itij-YI:iSS•Y is iti'•'�%�,' <br /> I h e rtif th I have co pleted this work in accordance with applicable ordinances, rules and laws. <br /> �� (license#) —�GtZ��(date) <br /> - (signature) _ -_ <br />