'Dung gate' in the Bible

I went out during the night at the gate of the valley by the Dragon spring and to the Dung Gate. And I examined the walls in Jerusalem and its gates that had been destroyed by the fire.

Hanun and the inhabitants of Zanoah repaired the Valley Gate. They rebuilt it and erected its doors, its bolts, and its bars, and a thousand cubits of the wall up to the Dung Gate.

Malkijah son of Recab, commander of the district of Beth-haccherem, repaired the Dung Gate. He rebuilt it and erected its doors, its bolts, and its bars.

Then I brought the commanders of Judah up on to the wall. I appointed two great choirs; [one went in] a procession to the right on the wall to the Dung Gate.