How to repairing a faucet
Not only can dripping faucets be annoying, but they can also be expensive.
Fortunately, your faucet can be rather easily repaired.
Faucets were designed to draw water from a pipe. Faucets in your house use simple valves that that control the flow of water. Several types of valves can be used in household faucets: compression valves (sometimes called stern and seat), disk, ball and cartridge are the most common. Your outdoor faucets use a type of compression valve, or a long stem compression design, called a freezeless sillcock.
Different configurations of levers ad handles can be used to open and close the valves. Some may have a different look.
Hot and cold water supply lines, which feed faucets from below, have shut off valves in the lines that can be turned off while working on a faucet.
Before beginning a repair, you will need to determine what kind of valve is inside your faucet. First, identify the brand, and if possible, the model. After determining the brand, you can either write the information down or just take the faucet with you to the hardware store or plumbing supply store.
If you had the forethought to keep the manual when the faucets was installed, you will have the brand, model and perhaps even some information about the parts needed available to you to aid in your search for the parts needed to make the repair.