== Storage Tanks ==
Storage tanks that are properly designed, constructed, and maintained can provide 30 to 50 years of service.<br/><br/>Steel tanks should be kept clean and free from spilled oil or other material. They should be kept painted and all water or accumulated dirt should be removed from around the bottom edge of the tanks. Thief hatches and vent-line valves should be kept closed and inspected periodically for proper operation and gasket condition. Should any leaks occur, they may be repaired temporarily with lead sealing plugs or toggle bolts. These leaks should be repaired permanently as soon as possible.
</div ><div class="toccolours mw-collapsible mw-collapsed"> </div>
== General References ==
Evaporative Loss Measurement. 1997. ''Manual of Petroleum Measurement Standards'', Chap. 19, Sec. 2-E. Washington, DC: API.
API RP12R1, Setting, Maintenance, Inspection, Operation, and Repair of Tanks in Production Service, fifth edition. 1997. Washington, DC: API.
API Standard 620, Design and Construction of Large, Low-Pressure Storage Tanks, tenth edition. 2002. Washington, DC: API.
</div ><div class="toccolours mw-collapsible mw-collapsed" ></div>