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Assmann Polyethylene Tank <br /> Maintenance Schedule and Check List Inspection log: <br /> 1. Never enter a tank without following OSHA approved <br /> guidelines. <br /> 2. Check each fitting monthly for possible seepage or leaks. <br /> 3. If you detect some seepage,tighten the bolts or the <br /> compression nut slightly. Do not over tighten. <br /> 4. If tightening the hardware does not solve your problem, <br /> you may need to replace the gasket or the complete <br /> fitting. <br /> 5. Flush your tank every 12 months. This will help to <br /> prevent premature failure due to buildup or oxidation. <br /> Do not flush the tank with anything that may cause <br /> an exothermic reaction. Check with your chemical <br /> supplier for a solution that can be safely used to <br /> flush. <br /> 6. If your tank is five years or older,check the inside and <br /> outside surface of the tank for crazing,cracking or <br /> unusual discoloration. Focus around fitting areas. If <br /> you do not find anything,you should check the tank <br /> every year thereafter. For chemicals like sulfuric acid, <br /> sodium hypochlorite,sodium hydroxide or other <br /> known stress-cracking agents,check the surface area <br /> after the second year in service and every six months <br /> thereafter. <br /> 7. Stress cracking is a warning sign that should not be <br /> ignored. If you suspect or see any signs that could be <br /> stress cracks,call your local Assmann representative or <br /> Assmann Corporation direct. <br /> 8. Make sure all flexible expansion joints are in good <br /> working order. <br /> 9. Do not allow the individual responsible for filling the <br /> tank to surge air into the tank after filling is complete. <br /> This tank is not a pressure vessel. Do not use more <br /> than 7psi when clearing fill lines. <br /> 10. Keep a log of all inspections in the space provided to the <br /> right. <br /> 5 <br />