'Dung gate' in the Bible

So I went out at night by the Valley Gate toward the Dragon’s Well and to the Refuse Gate and inspected the walls of Jerusalem which were broken down and its gates which were consumed by fire.

Hanun and the inhabitants of Zanoah repaired the Valley Gate. They built it and set up its doors with its bolts and its bars, and repaired a thousand cubits (1,500 ft.) of the wall as far as the Refuse Gate.

Malchijah the son of Rechab, the official of the district of Beth-haccherem repaired the Refuse Gate. He rebuilt it and set its doors with its bolts and its bars.

Then I had the leaders of Judah come up on the wall, and I appointed two large thanksgiving choirs, the first one proceeding to the right on top of the wall toward the Refuse Gate.