About the Pool of Siloam:
According to the Jerusalem Talmud (Hagigah), the Pool of Siloam was the starting point for pilgrims who made the annual pilgrimage to Jerusalem, and where they ascended by foot to the inner court of the Temple Mount to bring an offertory to the Temple Court.
It is significant for Christians because it was here that Jesus performed a miracle as described in John, 9. Jesus and his disciples noticed a man who had been blind since birth. While the disciples asked Jesus what sin had caused him to be blind…whether his or his parents….. Jesus replied it was no sin that caused the man to be born blind. Then “When He had said these things, He spat on the ground and made clay with the saliva; and He anointed the eyes of the blind man with the clay. And He said to him, “Go, wash in the pool of Siloam” (which is translated, Sent). So he went and washed, and came back seeing. (NAB John 9: 1-41).
Finding the Pool of Siloam:
The pool is located in the oldest inhabited part of Jerusalem, known as the City of David.