On the spray head of the faucet, you will find a button. This button is used when you want to use the spray mode of water. This is a push-down button. It means when you push the button, the water comes in spray mode, but when you don't push the button, it comes in a stream mode of water. So, it is a button that you need to push down until you need spray mode. If you leave the button, it starts to stream water.