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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 lank 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 / backfill and extending to a minimum of 12 inches t 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 . CAUTION:Use of steel cable or round only cover, it shall be a minimum of 36 inches bar is prohibited. deep. 8.5 Areas not subject to heavy vehicular traffic shall INt USE Of sttn have a protectiv_cover of a minimum 18 inches of cert•Nor NDPA clean compacted soil covered by 4 inches of AS Nolo 00WN STPMS 15 eN01119��ED 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 prior to backfilling. 7.1 A pad of inert,isolation dielectric material must 9.0 For Glasteel I1 warranty to be initiated,the be used to separate the steel anchor strap from the Installation Checklist must be properly filled out tank.Isolation pads are not required when the holddown by the customer, and returned to the Modena strap material is approved fiberglass or polyester webbing. Welding Co.subsidiary from which the tank was BACKFILL 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. Glasteel II tank has not been installed within 90 days of 1.Clean washed Band. delivery from the manufacturer;it is required that the tank be 2.Pea Gravel-(particle site must be not less than re-certified by the manufacturer.at the owner's expense,prior 1/8 inch or more than 314 inch) to installation. 3.Washed stone or gravel erwhinge- MAINTENANCE l (angular particle size required to be not lase than 1/8 inch or more than 1/2 inch) 10.0 Maintenance of Underground Storage Tanks M7x § The primary tank should he inspected monthly for the 43skn ,; Pea �1 cnratra:' presence of water.Inspections should take place at the ` Ynw^ �t 1p - lowest possible points inside the primary tank.Remove r— ':' )/ 4 ; 1 any water found.Water and sediment in fuel can cause t. ... plugging of filters.Also,bacterial growth originating from 2 the fuel,can cause filters to plug and corrosion of tanks :� i, ,,, ... and lines.A report by the US Department of Energy, i1NvvCtr;, s BNL 48406,provides information on methods to teat for o ensure that the and remove water,test for bacterial presence in fuel, tank 8.1 Special care should be used t backfill is properly installed o evenly support the cleaning and fuel additives.Failure to remove water from the tank may void your warranty. bottom quadrant of the tank. NOTE: Do not backfill in layers using different SUBSIDIARIES NATIONWIDE: materials. Corporate Office (270)685-4400 Fwashed grade Modern Welding Company of Owensboro,Inc (270)683-5323 -- Modern Welding Company of Ohio,Inc (740)344.9426 typkasy9b4R s:.;;::;:;::•.•;:::;:'•� : :- :i Modern Welding Company of Florida,Inc (407)843-1270 Modern Welding Company of Texas,Inc (7 13)675.4211 Modena Welding Company of Texas,Inc (817)636.2215 Modern Welding Company of Iowa,Inc (319)754.6577 Modern Welding Company of California,Inc (559)275.9353 .�. 124. Modern Welding Company of Georgia, Inc (706)722.3411 ` sob" placem.nt and raqu4 o0 FORM Gla0ins, 01-2001 MWCe 2 4� Z