My kitchen sprayer leeks, what causes that and how do I make it stop leaking

Where does it leak from? The handle or the connection to the sink?

Good questions amricca!

So what do you say, clkenealy? Dripping from sprayer itself all the time? Dripping for prolonged periods after sprayer use? Dripping from connection between the sprayer and the hose connection? Dripping from underneath sink (do you see wetness under the cabinet anywhere)?

What make/model is the faucet? Let us know and I will see if they have a replacement sprayer available.. ok?

Answer Amricca's questions and mine.. we will see what we can do. Talk soon... Mark