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Multiple tank installation will also require a 8.2 If tank must be ballasted during the backfill minimum of 12 inches between tank measured from procedure, at no time may the liquid exceed the each outside edge. height of the compacted backfill surrounding the tank. ANCHORING 8.3 The tank shall be encompassed by the proper �. 7.0 Certain situations require the use of properly backfill and extending to a minimum of 12 inches designed anchor straps to overcome existing over the top of the tank. buoyant forces.The straps are used in conjunction 8.4 Areas subject to heavy vehicular traffic shall have with a concrete holddown slab or deadman a protective cover of 18 inches clean, compacted anchors. soil with either 6 inches of reinforced concrete or 8 CAUTION. Use of steel cable or round inches of asphalt paving. If compacted soil is the bar is prohibited. only cover,it shall be a minimum of 36 inches deep. 8.5 Areas not subject to heavy vehicular traffic shall y., THE USE OF STEEL have a protective cover of a minimum 18 inches of CAME HolAND oowN"s°Asa s clean compacted soil covered by 4 inches of IS PROHIBITED reinforced concrete or 6 inches of asphalt paving. If compacted soil is the only cover,it shall be a minimum of 24 inches deep. 8.6 Finishing Instructions; A fiberglassing kit is shipped with tank and provides materials to cover unused openings and external attachments, such as lifting lugs.all finishing work will be done 7.1 A pad of inert,insulating, dielectric material must prior to backfilling. be used to separate the anchor strap from the 9.0 For Glasteel II warranty to be initiated,the tank. Installation Checklist must be properly filled out by the customer, and returned to the Modern BACK-FILL Welding Co. subsidiary from which the tank was 8.0 Only the following approved backfill material may fabricated. The Installation Checklist must be be used. returned within 30 days after date of installation.If the 1. Clean washed sand. Glasteel H tank has not been installed within 90 days 2.Pea Gravel- (particle size must be not less than of delivery from the manufacturer,it is required that the 1/8 inch or more than 3/4 inch) tank be re-certified by the manufacturer, at the owner's( 3.Washed stone or gravel crushings- expense,prior to installation. (angular particle size required to be not less than 1/8 inch or more than 1/2 inch) MAINTENANCE 10.0 Maintenance•of Underground Storage Tanks Theprimary tank should be inspected monthly for the s Pea CniahYd,.. z- _ ;:, resents of water. Inspections should take lace at the 1 ,,,.� cask � ;w< . P sP P lowest possible points inside the primary tank.Remove 6 any water f=ound. Water and sediment in fuel can cause ��,:. 2'' '••' plugging of filters.Also,bacterial growth originating from i the fuel,can cause filters to plug and corrosion of tanks •. { m and lines. A report by the US Department of Energy, _s BNL 48406,provides information on methods to test for 8.1 Special care should be used to ensure that the and remove water, test for bacterial presence in fuel,tank backfill is properly installed to evenly support the cleaning and fuel additives.Failure to remove water from bottom quadrant of the tank. the tank may void your warranty. NOTE: Do not backfill in layers using different SUBSIDIARIES NATIONWIDE: materials. Corporate Office (270) 585-4400 Finished grade Modern Welding Company of Owensboro, Inc (270)683-5323 Modern Welding Company of Ohio, Inc (740) 344-9425 typiaily 3 tc 4 R 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 i:. Special plzcernece and rciWpacdw required