Toilet Water Tank That Refills After Flushing
This page is the CodyCross answer for the clue below from Mesopotamia, Group 965, Puzzle 4 (First Dog Collar).
Question is: Toilet Water Tank That Refills After Flushing
and the answer is: CISTERN
Word Meaning:
CISTERN — A reservoir or tank for holding water, especially for catching and holding rainwater for later use.
Definitions from Wiktionary.