'Fountain gate' in the Bible

I proceeded to the Fountain Gate, and then to the King's Pool, but there wasn't sufficient clearance for the animal I was riding to pass.

Colhozeh's son Shallum, ruling official of the Mizpah district, repaired the Fountain Gate, reconstructing it, installing its doors, its locks, and its security bars, as well as the Pool of Shelach near the royal garden as far as the stairway that descends from the City of David.

At the Fountain Gate, which stood opposite them, they ascended the stairs of the City of David where the wall rose above the house of David east of the Water Gate.