A Mechanism for Filling a Toilet's Water Tank
This page is the CodyCross answer for the clue below from Paris, Group 244, Puzzle 5 (Fondation Louis Vuitton).
Question is: A Mechanism for Filling a Toilet's Water Tank
and the answer is: BALLCOCK
Word Meaning:
BALLCOCK — A floating sphere, attached to a lever, that controls the level of liquid in a cistern.
Definitions from Wiktionary.