Container, pump system, and maintenance method

A container being a hollow container provided above a hollow column provided around a liquefied gas pump, the container comprising:

• an openable and closable lower plate member provided at a lower part of the container;
• a manual opening/closing device provided inside the container and configured to be operated to open and close the lower plate member;
• a glove box provided inside the container and configured to allow a user to insert his or her hand from outside the container in order to operate the manual opening/closing device;
• and
• a work window arranged near the glove box and the manual opening/closing device so that the glove box and the manual opening/closing device are visible from outside the container.