Floating Mechanism for Filling Up a Water Tank
This page is the CodyCross answer for the clue below from Concert Hall, Group 596, Puzzle 5 (Sound Amplification).
Question is: Floating Mechanism for Filling Up a 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.