1. A tank in which water or sewage is retained for periodic release through a sewer. 2. A small water-filled tank for flushing a water closet.


Related Terms

VENTING

The release of cargo vapour or inert gas from cargo tanks and associated systems.

SOUNDING PIPE

A pipe leading to the bottom of an oil or water tank, for guiding a sounding tape or jointed rod when measuring the depth of liquid in the tank.
Sounding pipes in the engine room are normally fitted with deadweight cocks and screw caps. Caps and cocks should be closed at all times, except when sounding tanks.

PHOTOELECTRIC LIQUID-LEVEL INDICATOR

A level indicator in which rising liquid interrupts the light beam of a photoelectric control system; used in a tank or process vessel.

MODEL BASIN

A large basin or tank of water where scale models of ships can be tested.

METRIC CENTNER

1. A unit of mass equal to 50 kilograms. 2. A unit of mass equal to 100 meter-proving tank See calibrating tank.

MEASURING TANK

A tank that has been calibrated and fitted with devices to measure a volseparation of soil, sediment, or rock by sieving, screening, or other means to determine particlesize distribution.

LOADING RACK

The shelter and associated equipment for the withdrawal of liquid petroleum or a chemical product from a storage tank and loading it into a railroad tank car or tank truck.

LIFTER ROOF

Gas storage tank in which the roof is raised by the incoming gas as the tank fills.

INGEN-HAUSZ APPARATUS

An apparatus for comparing the thermal conductivities of different conductors; specimens consisting of long wax-coated rods of equal length are placed with one end in a tank of boiling water covered with a radiation shield, and the lengths along the rods from which the wax melts are compared.

IMHOFF TANK

A sewage treatment tank in which digestion and settlement take place in separate compartments, one below the other.

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