Laserfiche WebLink
Oct 19 06 09: 10a Josh Swedlund (952) 873-3292 p. 10 <br /> DOSING CHAMBER SIZING <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 ft2 41 W <br /> Length <br /> B. Circle area=3.14 x radius? <br /> 3.14 x zft = 0.0 ft2 <br /> C. Get area from manufacture ft2 Radiu <br /> 2. Calculate gallons per inch <br /> There are 7.5 gallons per cubic foot of volume,therefore multiply the area(1A,8 or C) <br /> times the conversion factor and divide by 12 inches per foot to calculate gallon per inch. <br /> Surface area x 7.5/12= 0 ft2 7.5 / 12inlft = 21.5 gallon per inch Legal Tank: <br /> 500 gallons or <br /> 3. Calculate total tank volume 100%the daily flow <br /> A. Depth from bottom of inlet pipe to tank bottom 47 in or Alternating Pumps <br /> B. Total tank volume=depth from bottom of inlet pipe to tank bottom(3A)x gal/in(2) -A..I:rstimoted Sewage llows in Gallors per De- '-..-- <br /> = 47 in x 21.5 gal/in = 1010.5 gallons __' <br /> Gedr-eroorrs aass I aas Ii Class III Pass IV <br /> 7 300 2'25 160 6117. <br /> 4. Calculate gallons to cover pump(with 2-3 inches of water covering pump) 3 450 300 210 of the <br /> (PPum and block hei.ht+2 inches)xgallonper inch 4 600 375 256 values <br /> ump ,. 750 450 294 in the <br /> ( 12 + 2 in) x 21.5 gal/in = 301.0 gallons 525 332 crass I. <br /> 7 1050 600 37U U.or III <br /> L_tl 1200 675 4011 carurms. <br /> 5. Calculate total pumpout volume <br /> A. Select pump size for 4-5 doses oar day. Gallon per dose=gpd(see Figure A-1)l doses per day= <br /> 600 ,gpd / 4 doses/day = 150 gallons <br /> B. Calculate drainback <br /> 1. Determine total pipe length 40.0 ft II <br /> 2. Determine liquid volume of pipe, 0.17 gal/ft(see figure E-20) <br /> 3. Drainback quantity= 40.0 ft(5111) x 0.17 gal/ft(582) 6.8 v L"'�� Volume of Lk ui�in Pi)e, <br /> C, Total pump out volume=dose volume(5A)+drainback(5B3) Pipe Diameter Gallons per font <br /> 1 c <br /> 150 gallons+ 6.8 gallons= 156.8 • 1 0,045 <br /> 1.25 0.078 <br /> 1.5 0.11 <br /> 6. Calculate float separation distance(using total pumpout volume) 2 0.17 <br /> Total pumpout volume(5C)/gal/inch(2) 2.5 0.25 <br /> 156.8 gal 1 21.5 gal/in = 7.3 inch 3 <br /> 4 0.38 <br /> 0.66 <br /> 7, Calculate volume for alarm(typically 2-3 inches) <br /> Alarm depth(inch) x gallon/inch(2) = 3 in x 21.5 gal/in = 64.5 gal <br /> 8. Calculate total gallons=gallons over pump(4)+gallons pumpout(5C)+gallons alarm(7) <br /> 301.0 gal + 156.8 gal + 64.5 gal = 522.3 gal <br /> 9. Total tank depth=total gallons(8)/gallon/in(2) , . =,*•z re<<rut!, <br /> 522.3 gallons 1 21.5 gallin = 24.3 r;,`'' Ir, <br /> r� <br /> S. 0.i-.rrr',,ri <br /> Recommended -� - - -- . _ ----` ,ntici <br /> Calculate reserve capacity(75%of the daily flow) r4 I-. n :41 <br /> Daily flow x 0.75 = 600 x 0.75= 450gallons I..1c ;on f r„ f 11r. + <br /> � -l�Ir��+ �z+l <br /> [i <<;:LI itKLKLLX.ru <br /> I hereb rtify t I h v comp ed this work in accordance with all applicable ordinances,rules and laws <br /> 7 (signature) ,.�D� (license#) /01 3 , (date) <br />