Hole From Where Waste Water Can Drain
Puzzle 9 of Recycling Medium Pack
Question is: Hole From Where Waste Water Can Drain
and the answer is: SOAKAWAY
Word Meaning:
SOAKAWAY — (chiefly UK) A deep hole used for drainage, where rainwater and other wastewater drains directly into the ground, without connection to any mains drainage or sewerage pipes.
Definitions from Wiktionary.