The most common home plumbing problem is a leaky faucet. The leaks happen when the washers, O-rings, or seals inside the faucet get dirty or worn out. It’s not hard to fix a leak, but the techniques vary depending on the type of faucet you have. Determine the faucet design and the replacement parts before you begin your work.
There are four basic designs: ball-type, cartridge, disc, and compression. Many can be identified easily just by their outer appearance, but there are some that you have to take apart before it can recognized.
Many double-handled faucets use the compression design. From time to time you have to replace the washers or seals in the compression faucets. These are very easy to make, and the replacement parts are not expensive.
The ball-type, cartridge, and disc faucets are known as washerless faucets. Many of the washerless faucets have a single handle, but some do have two handles. These faucets will make less trouble for you than the compression faucets will, and they are designed for quick repair.
Make sure the replacement parts match the original parts before you install them. The replacement parts for the more popular washerless faucets are identified by their brand name and model number. Bring the worn parts with you when you go to the store to get ones. It will help you identify the parts you need.