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REC Thule Towing Systems Page 4 of 5 <br /> Stage 5 is a dip rinse tank that is filled from a Reverse <br /> Osmosis water system and has a pre rinse and post rinse <br /> spray that drains back into the tank. This tank is changed out <br /> about twice per year and is basically distilled water. <br /> Stage 6 is the actual paint tank that the parts are dipped into <br /> and never drains at all; we clean and refill with the existing <br /> paint being put back into the tank. <br /> Stage 7 pre rinse I and post rinse 2 is a city-water filled tank <br /> that is a dip process; this tank is cleaned and refilled twice <br /> per year both rinses drain back to the tank. <br /> Stage 8 is a paint cure tank/reaction tank that the parts are <br /> dipped into and is heated to a 140 degrees; this is the final A <br /> coat stage before the parts are baked in the cure ovens. <br /> The waste pit is only for the pH neutralization of the waste <br /> stream from stages 2/41517 and is set between 6.50 and 9.50; <br /> it automatically detects pH levels on a constant basis and <br /> controls chemical pumps to bring the level into said specs. <br /> We clean the pit about every 6 weeks of any sludge <br /> accumulation which goes into 55 gal drums for disposal. <br /> There are no filters on this waste stream because there are <br /> very minimal solids in the waste stream. <br /> Melissa Foland <br /> Chemical Data Management Systems <br /> (925) 551-7300 <br /> melissa@cdms.com <br /> cell: 925-766-3181 <br /> Melissa Foland <br /> Chemical Data Management Systems <br /> (925) 551-7300 <br /> melissa@cdms.com <br /> 9/8/2009 <br />