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` - ' � DOSING CHAMBER SIZING '�G �°�� �� <br /> � . c��� �ti:�... <br /> 1. �Deterinine�rea � <br /> ►rwa <br /> A. R�ctangle area=L x W � <br /> X = square Eeet <br /> R. Circle area=n(3.14) x radius in feet x radius in feet . �---�u ( <br /> 3.7 4 x ft x #t= sqft <br /> C. Get�rea Erom manufachirer sqft Radius <br /> 2. Calculate gallans per u�ch <br /> There are 7.5 gallons per cubic foot of volume,therefore multiply the area(lA,B or�C) <br /> ti�nes the conversion factor and divide by 12 inches per f ot to calculate gallon per inch. <br /> A rea x 7.5+12='�'i <�qft x?.5+12 in/ft = � gaIlon per inch <br /> U q �,� <br /> 3. C�lculate tota�nk volume � �� Lega i Ta,i k: <br /> A. Dr�pth from bottom of inlet pipe to tank bottom 'y0 in � � ' S00 galIons or <br /> B. Tot�l t�nk volume=depth from bottom of inlet pipe to tank bottom(3A)x gal/in(2) 100% the Dail f flvw <br /> _ _ °�U in x�gal/in= l oa c gal Dr <br /> 4. Calculate alions to cover um (with 2-3 incltes of water coverin um AI�'�at�ng I'umps <br /> � P P gP P� <br /> (Pump nd block height(inch)+2 inch) x gallon/inch A.�:������� <br /> (_�in +2 in}x �$al jin= Z��i �Qallon <br /> 5. Calculate toEal pumpout volume � �� �� �� �� <br /> A. Select pump sixe for 45 does er da Gallon r dose= Z' � � I� � <br /> P Y• Pe gpd (see figure A-1) 1 �ip �Op 218 d Ihe <br /> / doses per day= o i� gpa+ � doses/day= / Z o gallons 4 6� 375 256 vdues <br /> B. Calculate drainback 5 J50 450 294 inlhe <br /> 1. Determine total pipe length,�Sv feet b q� r� � �� <br /> 2. Determine lic�uid volume of pipe,O,/�gal per ft(see figure E-20} 1 1050 60D �]0 a aM � <br /> 3. Drainback c�uantity=?�� ft(5B3)xQ./ � gal per ft(5B2)= bG ,gal 8 120D 815 40B c�� <br /> C. 7'ot�l�ump out volume=dose'volume(5A}+drainback(5B3) <br /> !�c��al+ Co Q gal= /�'a Total gallon E�2Q: llolun�e of Liquid in Pip�; <br /> sa� <br /> 6.Float separatios�distance(using total pumpout volume) PiPe I�1met� Gallons per foot <br /> Total pumpout volu�ne( )+gal/inclt(2) <br /> /S c��al+ gal/in=��inch 1 0.445 <br /> 1.25 0.078 <br /> 7. CaIculale volume for alarm (typically 2 to 3 inches) � �� �j�._` <br /> Atarm depth (inch)x gallon/inch(2)_�_in x ��al/in}- 75 gal �� 0.17 <br /> �____–' <br /> 2.5 025 <br /> 8. Calculate total gallon=gallons over pump(4 gallons pum�t(5C)+gailons alarm(� 3 0� <br /> Z�-i c��al + J�vtial+ �►1= �'.� gallons 4 U.bb <br /> 9. Total Ta�ik Depth= total gallon (8)+gallon/inch(2} �4 c n <br /> �,,,�9� .�,y ��s--y . <br /> —��l t gal/in= � ^�. <br /> ; .. �!v <br /> IC1�6t �d�• .�•• ;,; >�:. <br /> , <br /> Recomme�nded: p�pe ': eSe e CapqClfiy �` <br /> �y�`' � �, y� � aiarm on <br /> Calculate reserve capacity (75% the daily flcsw) �' ,,. <br /> �" �'' control <br /> Daily flow x .75 = koc� x .75 =��'$allons �+� -- -"- - -- - r'� <br /> pumpout volume� �g�,� � <br /> ., <br /> .�u- ��.4- � � 7'a 'r 't --- ------------- --- -- ;} um on <br /> P P <br /> _i /�� '! � pum off� �`� control <br /> ���, — '��� 9 �d., .:.; Z,5'u �ol <br /> �:�.• :•• ',�a.•- � .� �`� <br /> T lier rtify that I have co pleted this work in accordance with applicable ordinances, ruies and laws. <br /> (signaturel ��.�Z,f'—(license#) ��-�date) <br />