Abstract: A valve for a water dispenser including a housing, a resilient member, a slide, a button, a O-ring and an inlet connector, wherein the resilient and slide are fitted within the housing and the inlet connection is engaged with an outer end of the housing, characterized in that when the button is pressed by the teeth of an user, the slide will be forced to go further into the housing thereby moving an O-ring 34 away from the circular recess of the inlet connector and therefore enabling water to flow through the passage of the inlet connector and the interior of the housing into the mouth of the user.