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SANITARY SEWER TREATMENT PLANT SPECS. - (Con't) <br /> ELECTRICAL CONTROL PANELS <br /> The necessary controls for each blower motor and associated plant equipment <br /> shall be housed within the NEMA 3R blower cabinet or approved equivalent. <br /> STEEL TANK <br /> The tank shall be 4" steel plate joined by arc welding with fillets of adequate <br /> section for the joint involved. Walls shall be continuous and watertight and <br /> shall be supported by structural members where required. <br /> CATHODIC PROTECTION <br /> 16 magnesium anodes shall be furnished anodes are to be buried and securely <br /> connected to tank walls by heavy copper wire in good electrical contact thereto. <br /> PAINT <br /> The inside and outside surfaces of the tank shall have all rust, mill scale, flux <br /> flumes, oxides, grease and oil removed by commercial sand blasting. Immed- <br /> iately after sand blasting, one coat of Bakelite Chromate Primer and one coat <br /> of green enamel shall be applied to all surfaces. The primer coat shall be <br /> 469409 and the finish coat shall be #67323 as manufactured by the Perry and <br /> Derrick Company, Inc. of Cincinnati, Ohio or approved equivalent. <br /> .. <br /> _- i ✓ . ,.E:.V���2.� � ^,7�:.' <br /> .. <br /> ............................ <br /> ... ......................................................:.. <br /> Engircor <br /> Arthitect ............................ n...:u:p�gby..nesnw�sJnyy� <br /> Met <br /> -37- <br />