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Multiple tank installation will also require a 8.2 If tank must be ballasted during the backfill minimum of 12 inchas between tank measured from procedure, at no time may the liquid exceed the height of the compacted backfill surrounding the each outside edge, tank. ANCHORING 8.3 The tank shall be encompassed by the proper backfill and e-dending to a minimum of 12 inches 7.0 Certain situations require the use of properly over the top of the tank. designed anchor straps to overcome existing 8,4 Areas subject to heavy vehicular traffic shall have buoyant forces.The straps are used in conjunction a protective cover of 18 inches clean, compacted with a concrete holddown slab or deadman soil with either 6 inches of reinforced concrete or 8 anchors. inches of asphalt paving. If compacted soil is the eel cable or round only cover,it shall be a minimum of 36 inches CAUTION: Use of st bar is prohibited. deep. 8.5 Areas not subject to heavy vehicular traffic shall have a protective cover of a minimum 18 inches of �• 111E USE OF STEEL clean compacted soil covered by 4 inches of •.' r-:i CABLE AND ROUND BAF halt paving. If 6 P°Fo„1D,e 1E"$1PAP° reinforced concrete or 6 inches of asp P compacted soil is the only cover, it shall be a 4 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. to be initiated, the be used to separate the anchor strap from the 9.0 For Glasteel 11 warran Installation Ch cklist tmy ust be properly Filled out tank. by the customer, and returned to the Modern BACKFILL Welding Co.subsidiary from which the tank was fabricated. The Installation Checklist must be 8.0 Only the following approved backfill material may returned within 30 days after date of installation.If the be used. Glesteel 11 tank has not been installed within 90 days 1. Clean washed sand. of delivery from the manufacturer,it is required that the 2.Pea Gravel• (particle size must be not less than tank be re-certified by the manufacturer,at the owner's 1/8 inch or more than 3/4 inch) expense,prior to installation. 3.Washed stone or gravel crushings - jNTENANCE (angular particle size required to be not less than 1/8 inch or more than 1/2 inch) 10.0 Maintenance of Underground Storage Tanks The primary tank should be inspected monthly for the Z presence of water.Inspections should take8�R mov Y PM t rod[ 3 lowest possible pointe inside the primary any water found. Water and sediment in fuel cancause 3 from t .. •• plugging of filters.Also,bacterial growth originating 12• 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 8.1 Special care should be used to ensure that the cleaning and fuel additives.Failure to remove water from backfill is properly installed to away support the the tank may void your warranty. p Y bottom quadrant of the tank. different SUBSIDIARIES NATIONWIDE: NOTE: Do not backfill in layers using materials. 602 688-4400 Corporate Office ( � 683_5323 grata Modern Welding Company of Owensboro,Inc (502) FWWwd Modern Welding Company of Ohio,Inc (740) 344-9425 an of Florida,Inc (407)843-1270 Modern Welding Company 676-4211 hpioalty 3 m 4 ti Modern Welding Comp any of Texas,Inc (713) f Texas,Inc (817)686-2215 Modern Welding Company o M 9 764-6577 an f Iowa, Inc (31 ) Modern Welding Come Y oInc (209)276-9363 Modern Welding Company of California, ." Modern Welding Company of Georgia,Inc (706) 722-3411 SPDCW FORM Gles2ine, 09/1998 MWCO