John 4:13-14 (KJV) 
13 Jesus answered and said unto her, Whosoever drinketh of this water shall thirst again: 
14 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. 

Jesus makes it clear that He is not talking about water in Jacob's well. Rather, He is making a contrast, you see. Today the crowds are going to the water holes of this world, seeking satisfaction. They also are constantly looking for the physical, not the spiritual satisfaction. But now Jesus has created a desire in this woman's heart for the spiritual water.
The picture our Lord describes here is not that of a simple stream of water, but an overflowing fountain. Continue to “be filled” ( Ephesians 5:18 ) and the sweetness of our vital relationship to Jesus will flow as generously out of us as it has been given to us. If you find that His life is not springing up as it should, you are to blame— something is obstructing the flow. Was Jesus saying to stay focused on the Source so that you may be blessed personally? No, we are to focus on the Source so that out of us “will flow rivers of living water”— irrepressible life ( John 7:38 ).
We are to be fountains through which Jesus can flow as “rivers of living water” in blessing to everyone. Yet some of us are like the Dead Sea, always receiving but never giving, because our relationship is not right with the Lord Jesus. As surely as we receive blessings from Him, He will pour out blessings through us. But whenever the blessings are not being poured out in the same measure they are received, there is a defect in our relationship with Him. Is there anything between you and Jesus Christ? Is there anything hindering your faith in Him? If not, then Jesus says that out of you “will flow rivers of living water.” It is not a blessing that we pass on, or an experience that we share with others, but a river that continually flows through us. If we stay at the Source, closely guarding our faith in Jesus Christ and our relationship to Him, than, there will be a steady flow into the lives of others with no dryness or deadness whatsoever.
Is it excessive to say that rivers will flow out of one individual believer? Do you look at yourself and say, “But I don’t see the rivers”? Through the history of God’s work you will usually find that He has started with the obscure, the unknown, the ignored, but those who have been steadfastly true to Jesus Christ.