INSTALL_2006 - Laserfiche WebLink

Home Browse Search

All Single • Double Wall Tanks - SECTI PEA GRAVEL CRUSHED STONE ♦ In the unlikely event a tank leak is discovered,discon- Approved Gravel Approved Crushed Stone tinue the installation and immediately call Contain- Must consist of clean, or Crushed Gravel naturally-rounded aggregate Must be washed with angular ment Solutions Field Service to schedule a repair. with a mix of particle sizes particle size not less ♦ Prepare fittings fortesting not less than 1/8"or mo than 1/8"or more than 1/2". than 3/4". ❑ Remove fitting plugs. No •may No more than 5% ❑ Clean factory pipe dope from plugs and fittings. pass the#8 sieve. may pass the#8 sieve. Dry gravel density must Dry gravel density must E3 Apply pipe dope suitable for the material being be a minimum of 95 pounds be a minimum of 95 pounds per cubic foot. per cubic foot. stored in the tank. Note: If material which meets these specifications is ❑ Reinstall and tighten fitting plugs. not available, contact the Containment Solutions Tank Technical Support department for Information on approved alternate materials and installation instruc- TESTING SINGLE-WALL TANKS tions. Using other than approved bedding and backfill materials without Containment Solutions's prior writ- These tests must be performed before installing tanks: ten approval will void the tank warranty and may result in tank failure. ♦ Pressurize tanks. DO NOT ❑ 4'through 10'diameter tanks to 5 psi maximum. ♦ Mix approved backfill with sand or native soil. ❑ 12'diameter tanks to 3 psi maximum. ♦ Backfill tank with sand or native soil. ❑ A contractor supplied pressure relief valve must be CAUTION connected to the primary tank for additional pro- Using unapproved backfill material may tection. The relief valve should be sized and set result in tank failure and environmental to prevent the tank from being pressurized in ex- contamination. x- contomination. cess of the maximum allowed test pressure. ♦ Maintain test pressure and continue inspection for at A3. PRE-INSTALLATION TESTING least 30 minutes. ♦ At the same time, cover tank outer surface with soap solution(see Visual Air/Soap Test). DO Al Do not pressurize tanks over 5 psi (3 PSI FOR 121`: ♦ Use a maximum 15 psi air gauge with '/. or ''/] Ib. DIAMETER TANKS). Tank damage or physical injury increments. can result. ♦ Make sure you understand these instructions. If in ' doubt, call Tank Technical Support. ♦ DO NOT approach endcaps or manways while VISUAL AIR/SOAP TEST-TO BE PERFORMED ON tanks are under pressure. This could result in ALL TANKS PRIOR TO INSTALLATION. personal injury. ❑ Warm weather soap solution - 5 gallons of water ♦ DO NOT lift or hoist a tank under pressure.This with 8 ounces of household dishwashing detergent. could result in personal injury. ❑ Freezing conditions soap solution-substitute 1 gal- DO NOT Ion of automotive windshield washer solution for 1 ♦ Use a vacuum gauge in lieu of a pressure gauge. gallon of water. ❑ Cover entire tank outer surface with soap solution. TESTING DOUBLE-WALL TANKS WITH DRY (Exception-double-wall tanks with liquid filled an- ANNULAR SPACE pular space.) This section is fortanks which do not have monitoring tracer ❑ Cover all fittings with soap solution. fluid installed. If tank arrives at site with monitoring fluid installed,use instructions for Double-Wall Tanks with Annular ❑ Carefully inspect for leaks as indicated by bubbles. Space Filled on page 5. ❑ Roll tank to inspect bottom. Ensure fittings and/or collars do not contact ground. CONTINUED ON PAGE 6 5