Jesus is the true living water

"He that believeth on me, as the scripture hath said, out of his belly shall flow rivers of living water." John 7:38 (KJV) 

"Jesus answered and said unto her, If thou knewest the gift of God, and who it is that saith to thee, Give me to drink; thou wouldest have asked of him, and he would have given thee living water." John 4:10 (KJV)

"But whosoever drinketh of the water that I shall give him shall never thirst; but the water that I shall give him shall be in him a well of water springing up into everlasting life." John 4:14 (KJV)