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TANKTESTING <br /> 5.3.1. Comply with the requirements of Section 4. 5.3.14. Observe and monitor the gauge on the <br /> 5.3.2. Connect"TankTest Manifold"to a primary tank annular space for 30 minutes for any loss <br /> fitting. of pressure which may indicate a leak. <br /> 5.3.3. Connect hose between a primary tank fitting 5.3.15. While under pressure,cover tank outer <br /> and"Annular Space Gauge and Valve" surface,including fittings and manway(s) <br /> 5.3.4. Close valve between primary tank and annular with soap solution and inspect. <br /> space. 5.3.16. After completing air test,release pressure. <br /> 5.3.5. Connect the pressure source to the"TankTest 5.3.17. Remove all gauges,valves,and hose <br /> Manifold"on the main tank. assemblies. <br /> 5.3.6. Pressurize primary tankto 5 psig maximum 5.3.18. Replace and tighten fitting plug(s). <br /> (3 psig for 12'tanks) (see Figure 5-2). 5.3.19. Replace the plastic vent plugs in the <br /> Figure 5-2 open fittings. <br /> Air Supply Hose 5.4. Te"tin Double-Wall Com artment <br /> PrimaryTank Valve Closed Tanks With A Dry Annular Space And <br /> Fitting Double-Wall Bulk eadt <br /> Annular Space <br /> Fitting Annular Space <br /> 5 psig Do not connect the air supply directly to the annular <br /> (3 prig for 12'tanks) space monitoring fitting or tank damage will result. <br /> Primary Tank <br /> 5.4.1. Comply with the requirements of Section 4. <br /> 5.3.7. Close the air supply valve to the primary tank. 5.4.2. Connect"TankTest Manifolds"to each <br /> 5.3.8. Disconnect the air supply. compartment. <br /> 5.3.9. Open valve between primary tank and annular 5.4.3. Connect hose between a primary tank fitting <br /> space in order to pressurize the annular space and"Annular Space Gauge and Valve" <br /> using the existing pressure in the primary tank (refer to Figure 5 2). <br /> (pressure in the primary tank may drop 5.4.4. Close valve between primary tank and annular <br /> slightly) (see Figure 5-3). space. <br /> Figure 5-3 5.4.5. Connect the pressure source to the "Tank Test <br /> Manifold"on each compartment. <br /> Valve Closed Hose Valve Open 5.4.6. Pressurize all compartments to 5 psig <br /> Primary Tank <br /> Fitting Annular Space (3 psig for 12'tanks) (see Figure 5-5). <br /> Annular Space <br /> Fitting 5psig Figure 5-5 <br /> (3psgforl2'tanks) <br /> Air Supply Air Supply Air Supply <br /> Valve Closed <br /> 5 psig <br /> (3 psig for 12'tanks) Q O <br /> Primary Tank <br /> 5.3.10. While under pressure,cover fittings and 5 sig <br /> manway(s),with soap solution and inspect. 5 psig 5 prig <br /> 5p <br /> sig <br /> 5.3.11. Close valve to annular space. F*tension Extension <br /> Main <br /> 5.3.12. Open valve to vent primary tank. <br /> 5.3.13. Maintain pressure on the annular space 5.4.7. Close valve on each compartment"Tank Test <br /> F <br /> (see Figure 5-4Manifold"Disconnect the air supply line. <br /> Figure 5-a 5.4.8. Monitor the pressure for 30 minutes for any <br /> Valve Open "O� �yalve Closed loss in pressure from the initial reading which <br /> Fitting <br /> PrimaryTank / P 9 <br /> Annular Space may indicate a leak. <br /> Fitting 5psig <br /> Annular pace 5.4.9. With all compartments under pressure,cover <br /> (3psi9mr 12'tanks) fittings and manway(s)with soap solution and <br /> inspect. <br /> 5.4.10. Open valve between primary tank and annular <br /> space in order to pressurize the annular space <br /> using the existing pressure in the primary tank <br /> (pressure in the primary tank may drop slightly). <br /> 9 <br />