'Fuller's' in the Bible

Then the king of Assyria sent the Tartan and the Rab-saris and the Rabshakeh [his highest officials] with a large army, from Lachish to King Hezekiah at Jerusalem. They went up and came to Jerusalem, and when they went up and arrived, they stood by the aqueduct of the upper pool, which is on the road of the Fuller’s Field.

Then the Lord said to Isaiah, “Go out to meet Ahaz [king of Judah], you and your son Shear-jashub, at the end of the aqueduct of the Upper Pool, on the highway to the Fuller’s Field;

And the king of Assyria sent the Rabshakeh [his military commander] from Lachish [the Judean fortress commanding the road from Egypt] to King Hezekiah at Jerusalem with a large army. And he stood by the canal of the Upper Pool on the highway to the Fuller’s Field.