This same Hezekiah also stopped the upper watercourse of Gihon, and brought it straight down to the west side of the city of David. And Hezekiah prospered in all his works. The upper watercourse - He made canals to bring the waters of Gihon from the west side of Jerusalem to the west side of the city of David.
Related Commentaries of 2 Chronicles 32:30
2 Chronicles 32:30
30 This same Hezekiah also stopped the upper watercourse of Gihon, and brought it straight down to the west side of the city of David. And Hezekiah prospered in all his works.