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AFL INDUSTRIES,INC. <br /> RIVIERA BEACH,FLORIDA <br /> SERVICE TROUBLESHOOTING GUIDE PAGE 1 OF 3 <br /> MANUAL <br /> PRODUCT: OIL-WATER SEPARATORS <br /> INTRODUCTION <br /> After selection and installation of the appropriate oil/water separator,there may be instances when the unit does not appear to be <br /> functioning at the expected performance level. Generally,these problems stem from a readily correctable mechanical malfunction. <br /> In an effort to make these solutions more readily found,this pro blem-troublesh000ting guide has been compiled. <br /> A. FREE OIL IN EFFLUENT <br /> Cause Remedy <br /> l. VTC Tubes above the water level <br /> a. Water level too low Raise Effluent Weir Plate. <br /> b. Tubes floating Check grating to be sure it is in place and is weighing <br /> down all tube packs. <br /> 2. Skimmers not removing oil Weir Plate or Pipe Skimmer edge should be at <br /> minimum 1/4" above water line. <br /> Leading edge should be just above water line. <br /> 3. Oil build-up behind sheen baffle Remove oil with manual skimmer;by siphoning;use of <br /> oil sorbents;or other means. <br /> 4. Weir Plate not level Adjust for an even water/oil flow over weir. <br /> 5. Excessive flow through unit Reduce influent flow rate to design rate. <br /> B. WATER BACKING UP AT INLET CHAMBER <br /> Cause Remedy <br /> 1. VTC tubes blinded <br /> a. High solids level Remove Delta-Tubes and clean. Determine source <br /> of solids and possibility of recurrence: Was it <br /> an accidental dump, a recurrent dump, or a <br /> process change? <br /> b. Algae build-up Remove Delta-Tubes and clean. if a recurrent <br /> problem,a commercial algaecide may be required. <br /> 2. Excessive flow Reduce influent flow to within ratings. <br /> SUPERSEDES 1-0-M: 2.00-3 <br />