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Multiple tank installation will also require a minimum of 12 inches between tank measured from each. outside edge. ANCHORING 7.0 Certain situations require the use of properly desigaedanchor straps to overcome existing buoyant forces. The straps are usedin conjunction with a concrete holddown slab or deadman anchors. CAUTION: Use of steel cable: or round bar is prohibited. THE use OF STEEL G u MOT um BAR As NOLO 00" STRAPS Is PROHIBITED 7.1 Apad of inert, insulating, dielectric material must be used to separate the anchor strap from the tank. BACKFILL 8.0 Only the following approved backfill material may be used. 1. Clean washed sand. 2. Pea Gravel - (particle size must be not less than 1/8 inch or more than 3/4 inch) 3. Washed stone or gravel crushings - (angular particle size required to be not less than 1/8 inch or more than 112 inch) 8.1 Special care should be used to ensure that the backfill is properly installed to evenly support the bottom quadrant of the tank. NOTE: Do not backfill in layers using different materials. 8.2 If tank must be ballasted during the backfill procedure, at no time may the liquid exceed the height of the compactedbackfill surrounding the tank. 8.3 The tank shall be encompassedby the proper (. ' beak£ill and extending to a minimum of 12. inches over the top of.the tank. SA Areas subject toheavy vehicular traffic shallhave a.protective cover of 18 inches clean,compacted soil with either 6 inches of reinforced concrete or S inches of asphalt paving. If compactedsoil. is the only cover; it shall be a minimum of 36 inches deep. 8.5 Areas not subject to heavy vehicular traffic shall have a protective cover of a minimum 18 inches of clean compacted soil covered by flinches of reinforced concrete or 6 inchesof asphalt paving. If compacted soil is the only cover; it shall be a minimum of 24 inches deep. 8.6 Finishing.Instructions; A.fiberglassingkitis shipped with tank and provides: materials to cover unused openings and external attachments, such as lifting lugs. All finishing work will be done prior to backfilling. 9.0 For Glasteal II warranty tobeinitiated, the Installation Checklist must be properly filled out by the customer, and returned to the Modern Welding Co. subsidiary from which the tank was fabricated. The Installation Checklist must be returned within 30 days after date of installation. If the Glasteel II tank has not been installed within 90. days .of delivery from the manufacturer, it is required that the tank be re -certified by the manufacturer, at the owner's /— expense, prior to installation. (. : MAINTENANCE 10.0 Maintenance of Underground Storage Tanks The primary tank should be inspected monthly for the presence of water. Inspections should take place at the. lowest possible points inside the primary tank. Remove any water found. Water and sedimentin fuel can cause - plugging of filters. Also, bacterial growth originating from the fuel, can cause filters to plug and corrosion of tanks and lines. A report by the US Department of Energy, BNL 48406, provides information on methods to test for and remove water, test for bacterial presence in fuel, tank cleaning and fuel additives. Failure to remove water from the tank may void your warranty. SUBSIDIARIES NATIONWIDE: Corporate Of£ioe (270) 685-4400 Modern Welding Company of Owensboro, Inc (270) 683-5323 Modern Welding Company of Ohio, Inc (740) 344-9425 Modern Welding Company of Florida, Inc (407) 843-1270 Modern Welding Company of Texas, Inc (713) 675-4211 Modern Welding Company of Texas, Inc (817) 636-2215 Modern Welding Company of Iowa, Inc (319) 754-6577 Modern Welding Company of California, Inc (209) 275-9353 Modern Welding Company of Georgia, Inc (706) 722-3411