YOU SAID:

Going away to fetch a pail of water.

INTO JAPANESE

水の桶を取りに行く。

BACK INTO ENGLISH

I go to get a tub of water.

INTO JAPANESE

私は水槽に行く。

BACK INTO ENGLISH

I go to a fish tank.

INTO JAPANESE

私は魚の水槽に行く。

BACK INTO ENGLISH

I go to a fish tank.