Second, check the antique kitchen faucet cartridge. Some faucets contain a cartridge that controls the water flow. When the handle is turned, the cartridge releases water. The cartridge can become clogged. To identify a clogged cartridge, look for an irregular bump. The bump is usually red or blue and is located below the stem of the faucet. If you can't find it, remove the cartridge by prying it out with your fingernails or a small flat head screwdriver.