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TANKTESTING 5.6.1. This tank has a hydrostatic monitoring 5.6.16. With all compartments under pressure,cover system that includes a green monitoring fittings and manway(s)with soap solution and fluid pre-installed between the tank walls. inspect. 5.6.2. In the unlikely event of a tank leak,this 5.6.17. After completing air test,release pressure. monitoring fluid will leave a green trace on the 5.6.18. Remove all gauges,valves,and hose tank. assemblies. 5.6.3. If monitoring fluid is found on the tank inner 5.6.19. Replace and tighten fitting plug(s). or outer surface during any test,discontinue 5.6.20. Replace the plastic vent plug in the open the installation and immediately contact fittings. Containment Solutions Field Services. 5.7. For Tanks That Cannot Be Air Tested 5.6.4. Comply with the requirements of Section 4. (May Apply For Certain Non-UL Tanks) 5.6.5. With tank in upright position,remove the 4"vented plug from the reservoir fitting. 5.6.6. Add only enough monitoring fluid to cover s the rib inside the reservoir.Do not overfill If the tank is to be water tested,it must be supported past the rib at this time(see Figure 5-9). Final by backfill on all sides to the top of the tank.Failure to monitoring fluid levels will be set later in the installation process. do so may result in tank damage. Figure 5-9 5.7.1. These instructions are for tanks that require a Vented Reservoir Plug post installation water test. Reservoir 5.7.2. Comply with the requirements of Section 4. MEAN5.7.3. Tanks may only be water tested if the backfill is Monitoring at tank top(see Figure 5-11). Fluid Tank Rib Figure 5-11 Fill 2"into 4Access Collar /% 5.6.7. Reinstall vented reservoir plug to ensure \ i\ annular space is vented at all times. 5.6.8. Remove enough tank fitting plugs to see \/ water inside each compartment. /\ 5.6.9. With a light,look inside for monitoring fluid. Backfill \ 5.6.10. Replace and tighten fitting plug(s). 5.6.11. Connect"Tank Test Ma nifold(s)"to each compartment. 5.6.12. Connect the pressure source to the"Ta nkTest 5.7.4. Expose tank penetrations on tank top by Manifold"on each compartment. temporarily removing backfill. 5.6.13. Pressurize all compartments to 5 psig 5.7.5. So water does not exit the inlet/outlet pipe, (3 psig for 12'tanks) (see Figure 5-10). install a turned up elbow or plug. 5.7.6. Completely fill the tank with water to a level Figure 5-10 2"into the access collar(s). Air Supply Air Supply Air supply 5.7.7. Wait at least 30 minutes,if the water level in dftthe collar does not drop more than t/a';the tank is considered acceptable and leak free. 5.7.8. If the level drops more than the Ya';ensure that inlet and outlet pipe caps or plugs and collars are not leaking,then refill the tank and retest. okl 5 psig 5.7.9. After the tank is proven to be watertight, &tension remove the water in the tank to below the pipe invert. 5.6.14. Close valve on each"Tank Test Manifold." Disconnect the air supply line. 5.6.15. Monitor the pressure for 30 minutes for any loss in pressure from the initial reading which may indicate a leak. n