COMPLIANCE INFO_2010-2012 - Laserfiche WebLink

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• Before placing sump on tank fitting adapters, place approved backfill between the tank top and sump bottom. Ensure there will be no backfill voids under The use of approved backfill material is critical the sump. to long term sump performance. Failure to use Figure E-2 approved backfill may result in sump failure. Proper Backfill Installation Improper Backfill Installation • Replace all excavated native soil with approved backfill of proper sized and gradation. Use backfill Sump Backfin ° sump Backfill which meets ASTM C-33 for quality and soundness. • Require your backfill supplier to certify that the backfill uo meets this specification. • Keep backfill dry and free of ice in freezing conditions. • Use only the following approved backfills. •o •n Air Void Figure G-1 7 Right wrong PEA GRAVEL CRUSHED STONE Tank Fitting Tank Fitting • Position sump on tank fitting adapters, continue to place backfill under the sump bottom. (73/4" 1/2" • Complete fitting manufacturers installation of tank m) (12 mm) fitting adapters. • Before standing in sump or seating lid, place Maximum Size approved backfill between the tank top and sump Maximum Size bottom. Ensure there will be no backfill voids under the sump. 1" • Complete installation of sump per the installation 3/4r instructions. 1 �� • Keep the sump lid, o-ring and o-ring groove free from 2 contaminates. 1/4r _ • When installing lid, apply additional lubricant as needed. E2,_ • Step on lid perimeter until lid pops into place and is Pea Gravel: Crushed Stone or Gravel: properly seated. Clean naturally-rounded Washed,with angular aggregate with particle particle sizes no larger INIMMY-11"Im! e • sizes no larger than%" than%"with no more with no more than 5% than 5%passing a passing a#8 sieve. #8 sieve. Dry density must be a Dry density must be a DO NOT pressure test sump or DO NOT apply more than minimum of 95 pounds minimum of 95 pounds 25 inches water vacuum to sump enclosure or damage per cubic foot. per cubic foot. may occur. Note: If material which meets these specifications • Fill sump with water at least 3"above highest joint or is not available, contact the Containment Solutions penetration. Technical Support department for information • Record the liquid level. on approved alternate materials and installation instructions. Using other than approved bedding and • Wait 24 hours. backfill materials without Containment Solutions's • Re-measure and record the liquid level.A liquid prior written approval will void the sump warranty change of more than W indicates a possible leak. and may result in sump failure. • As an alternative, 25 inches water vacuum may ALTERNATE BACKFILL FOR SUMPS -SAND be applied to the sump. CSI Sump Vacuum Test If the tank is installed in pea gravel, crushed stone, Procedure for O-ring Top must be followed. The WTL or other porous backfill, a continuous layer of CSI testable lid must be ordered to perform this test. approved geotextile fabric must be installed at the tank top prior to backfilling sumps with sand. Refer to INST 6001 for specific requirements on geotextile. 5