One of the outdoor faucets on my house leaks even though I have tightened the knob as tightly as I can. How can I stop the drip quickly?
It depends on what kind of valve you have. Some valves can have the washer inside replaced pretty simply. Others need the entire valve replaced because there is no way to replace the washer. As a quick fix run to the local hardware store and purchase a brass hose end cap for about $1 and screw it on the valve. This will stop the dripping.