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18. OPERATING GUI• 18.3.ENTERING TANK 18.3.1.Do not allow anyone to enter the tank unless it has been 18.1.GENERAL properly emptied and vented,and unless the person entering 18.1.1.Owner must retain the Installation Manual and Operating the tank has been trained in confined-space entry procedures Guidelines for future reference to operating guidelines. and applicable OSHA regulations. 18.1.2. In addition to these installation instructions and operating A WARNING guidelines,follow all federal,state and local laws,regulations, codes and safety precautions that pertain to underground Improper tank entry could cause fire,explosion or asphyxi- storage tanks and/or their associated systems. ation,and could result in death or serious injury. 18.1.3.Consult tank brochures,separate system instructions 19. LIMITED WARRANTIES (such as oil/water separators)and separate accessory instructions,which are available upon request from the UST 19.1.GENERAL coordinator at the Xerxes plant nearest you.(See SECTION 20.) 19.1.1.Each product is covered by product-specific limited warranties,which contain operating guidelines and parameters 18.1.4.Consult the applicable warranty for each tank for further that should be reviewed as applicable.Copies of the limited operating guidelines and limitations.A copy of the warranty is warranties are available upon request from the UST coordinator available upon request from the UST coordinator at the Xerxes at the plant nearest you. plant nearest you.(See SECTION 19.) 18.2.FILLING TANK 20. SELECTED LIST OF 18.2.1.Never overfill the tank. 20.1.GENERAL 20.1.1.Supplemental materials,which may apply to specific 18.2.2.Xerxes recommends only gravity filling of tanks. installations and/or conditions,are available upon request from the UST coordinator at the Xerxes plant nearest you or from A WARNING technical support at Xerxes Minneapolis,as applicable. Xerxes does not recommend pump or pressure filling of the tanks because an overfill or overpressurization could 20.1.1.1.Among those materials available from the UST occur. Overfilling the tank while under pressure could coordinator are: cause tank failure even if the tank vent is unrestricted. • Backfill Guidelines, Tank failure could result in death or serious injury. • Split Backfill Instructions, • Prefabricated Deadmen Installation Instructions, 18.2.3.Each time the tank is filled,the owner/operator must • Man-Out-of-Hole(MOH)Straps Instructions, make sure the tank is properly vented. (See SECTION 11.) • Watertight Cover Gasket Replacement Instructions, • New York City Double-Wall Tank Installation/Testing Instructions, 18.2.4.Owner/operator must determine whether the tank has • Triple-Wall Tank Preinstallation Testing Instructions, overfill protection,such as automatic shut-off devices("flapper • Flexible Dipstick Monitoring Instructions, valves")or vent-restriction devices("ball-float valves"),which will • Field Fiberglass Lay-Up Instructions for Containment Sumps, close off the internal piping and reduce the tank's capacity. • Two-Part Sealant Mixing/Handling Instructions. 18.2.5.Owner/operator must notify whoever fills the tank that it 20.1.1.2.Among those materials available from technical has overfill protection,which reduces the tank's capacity. support at Xerxes Minneapolis are: 18.2.6.Before each tank filling,owner/operator or the delivery • Deep Burial Installation Guidelines, service must determine the tank's reduced capacity due to the • Alternate Backfill(Sand)Installation Instructions, overfill protection,and consult the instructions or guidelines • Cast-in-Place Deadmen Installation. provided by the installer and manufacturer of the overfill-protection device to determine how much additional product the tank can hold. 21. RETAINING INSTALLATION 21.1.GENERAL WARNING 21.1.1.After installation,tank installer must give Installation Ifownedoperatorallows pump or pressure filling of the tank, Manual to tank owner. owner/operator must ensure that the tank is not equipped with overfill protection,such as an automatic shut-off device or ball- 21.1.2.After installation,tank owner must retain Installation float valve.Owner/operator must notify whoever will fill the tank Manual for future reference to operating guidelines. that automatic shut-off equipment is required on the delivery truck to prevent an overfill and that overfilling the tank while under pressure could cause tank failure even if the tank vent is unrestricted.Failure to follow these instructions each time the tank is filled could cause an overfill,overpressurization or tank failure,and could result in death or serious injury. 26