TM 10-5430-240-13&P
0025 00
0025 00-2
5. After the tank is partially full (approximately 2.0 foot high), open the petcock on the flow tube and
bleed the air from the .25-inch ID hose.
6. Attach both 30.0 PSI (207 kPa) capacity gages.
TESTING
1. Open the petcock and fill the tank with water.
2. When the water pressure in the tank reaches 4.0 PSI (28 kPa), shut off the water supply.
3. Retorque all screws to the recommended torque values.
4. Observe the gages carefully. At 7.0 PSI (48 kPa), immediately shut off the water supply.
5. Allow the tank to stand for two hours. This allows the tank to stretch and adjust to the higher water
pressure.
6. After the two hour period, open the supply valve, throttling down the supply valve to approximate a
ten minute rise from 7.0 PSI to 12.0 PSI (48 - 83 kPa).
WARNING
When the testing pressure rises above 7.0 PSI (48 kPa), all personnel should be
kept at a minimum of 50 feet away from the tank. A tank rupture at high pressure
can cause injury.
7. When the pressure reads 12.0 PSI (83 kPa), close the supply valve immediately and open the drain
valve on the tank.
CAUTION
Do not let the tank stand at 12.0 PSI (83 kPa) for any length of time as this may
overstress the internal cord structure causing damage to the tank.
8. Drain the tank completely.
9. Remove the hoses and, if necessary, dry out the tank.
10. After the hydrostatic test is completed, retorque all bolts to the specified torque specifications.
11. Return the tank to service.
END OF WORK PACKAGE
