| 摘要 |
A standpipe leveler is suitable for use with the standpipe of a tank tester that is elevated to produce hydrostatic pressure on the tank. The leveler includes a graduate container for receiving liquid discharged from ports in the standpipe. The graduate container is connected to the inlet of a pump. The outlet of the pump is connected to the base of the standpipe for supplying liquid to the standpipe. A reservoir container may also be connected to the inlet of the pump and a drain or sump connected to the outlet of the pump. The graduate container may be located at a convenient level for the technician carrying out the hydrostatic pressure test to observe reduction of the liquid level in the graduate container due to leakage from the tank.
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