The valve is leaking. In case the valve is leaking, it’s doable the packing nut will not be tight enough. Tighten the packing nut further until the leak stops.Washer: A washer is found at the end of the stem and forms a seal towards the valve seat to stop h2o movement.EverflowSharkBiteSillcockPressure minimizing valveAngle valvePressure regulator