Isaiah 36:2

Then did the king of Assyria send Rabshakeh from Lachish to Jerusalem unto King Hezekiah with a heavy force, - and he took his stand by the upper channel of the pool, in the highway of the fullers field.

Isaiah 7:3

Then said Yahweh, unto Isaiah, Go forth, I pray thee, to meet Ahaz, thou, and Shear-jashub thy son, - unto the end of the channel of the upper pool, unto the highway of the fullers field;

2 Kings 18:17-37

And the king of Assyria sent Tartan and Rab-saris and Rab-shakeh, from Lachish unto King Hezekiah, with a heavy force to Jerusalem, - so they came up and drew near to Jerusalem, and took their stand by the upper channel of the pool, which is in the highway of the fuller's field.

2 Chronicles 32:9-23

After this, Sennacherib king of Assyria sent his servants towards Jerusalem, himself, being near Lachish, and all his imperial might with him, - unto Hezekiah king of Judah, and unto all Judah that was in Jerusalem, saying:

Isaiah 22:9-11

And the breaches in the city of David, ye beheld for they were many, - So ye gathered together the waters of the lower pool;

Treasury of Scripture Knowledge

Summary

And the king of Assyria sent Rabshakeh from Lachish to Jerusalem unto king Hezekiah with a great army. And he stood by the conduit of the upper pool in the highway of the fuller's field.

The conduit

Bible References

Sent

2 Kings 18:17
And the king of Assyria sent Tartan and Rab-saris and Rab-shakeh, from Lachish unto King Hezekiah, with a heavy force to Jerusalem, - so they came up and drew near to Jerusalem, and took their stand by the upper channel of the pool, which is in the highway of the fuller's field.
2 Chronicles 32:9
After this, Sennacherib king of Assyria sent his servants towards Jerusalem, himself, being near Lachish, and all his imperial might with him, - unto Hezekiah king of Judah, and unto all Judah that was in Jerusalem, saying:

The conduit

Isaiah 7:3
Then said Yahweh, unto Isaiah, Go forth, I pray thee, to meet Ahaz, thou, and Shear-jashub thy son, - unto the end of the channel of the upper pool, unto the highway of the fullers field;
Isaiah 22:9
And the breaches in the city of David, ye beheld for they were many, - So ye gathered together the waters of the lower pool;