Usage patterns
桶に水を入れるto fill a bucket with water
I filled a bucket with water and watered the flowers in the garden.
桶で〈物〉を運ぶto carry something in a bucket
On the festival day, I saw people carrying water in buckets.
桶の底が抜けるfor the bottom of a bucket to fall out (often used figuratively for a sudden collapse)
The bottom of the old bucket fell out and the water spilled.
Expressions
風が吹けば桶屋が儲かるany event can bring about an effect in an unexpected way; if the wind blows, the bucket makers prosper