LG WCD74GJ1P Owner's Manual page 21

How to clean
How to clean water tray
Removing the water tray

Remove the cover of water tray by
pulling upward and remove
the water tray by pulling forward, and
then clean thoroughly with water.
Clean the surface of water tray with soft cloth.

Installing the water tray to the product

Put the cover on top of the water tray, attach to the product's a
front side and then push a little to install.
Notice
Be aware that if there's too much water inside the water tray, it can spill when
the tray is removed.
Water tray's cover
Water tray
21