Kitchen Sink Leaking From Faucet

It's a common problem that can be frustrating and costly if not fixed promptly. The good news is that it's usually a relatively easy fix that you can do yourself with a few simple tools and materials.

Here are the steps on how to fix a kitchen sink leaking from the faucet:

Turn off the water supply. There should be two shut-off valves under the sink, one for hot water and one for cold water. Turn both valves clockwise to turn off the water supply.
Open the faucet. This will release any remaining water from the faucet and lines.
Remove the aerator. The aerator is the small screen at the end of the faucet. It can be removed by unscrewing it by hand or with a wrench.
Clean the aerator. The aerator can become clogged with mineral deposits or debris, which can cause the faucet to leak. Clean the aerator by soaking it in vinegar for a few hours, then rinsing it with water.
Replace the aerator. Once the aerator is clean, screw it back onto the faucet.
Tighten the packing nut. The packing nut is located where the faucet stem meets the faucet body. It can be tightened by using a wrench to turn it clockwise.
Replace the O-ring. The O-ring is a small rubber washer that seals the faucet stem. If the O-ring is worn or damaged, it can cause the faucet to leak. To replace the O-ring, simply remove the old one and replace it with a new one.
Reassemble the faucet. Once the O-ring is replaced, reassemble the faucet by screwing the faucet stem back into the faucet body. Tighten the packing nut until the faucet is snug.
Turn on the water supply. Open the shut-off valves under the sink to turn on the water supply. Check the faucet for leaks.

If the faucet is still leaking, there may be a more serious problem that requires the assistance of a plumber. However, following these steps will fix most kitchen sink leaks.