Collocations for drain - noun
1. pipe/hole that dirty water goes down
ADJ.
blocked
VERB + DRAIN
block | clear, unblock | lay
They were busy laying the drains for the new houses.
They were busy laying the drains for the new houses.
2. sth that uses up time/money/resources
ADJ.
heavy, major, serious | brain
scientists joining the brain drain (= moving to a country where they can work in better conditions and earn more)
scientists joining the brain drain (= moving to a country where they can work in better conditions and earn more)
PREP.
~ on
These losses have been a major drain on the company''s resources.
These losses have been a major drain on the company''s resources.