How To Repair A Leaky Delta Bathroom Sink Faucet

How to Repair a Leaky Delta Bathroom Sink Faucet

A leaky bathroom sink faucet is a common plumbing issue that can waste water and energy. Fortunately, it is often a relatively easy repair that can be completed in a matter of minutes. In this article, we will provide step-by-step instructions on how to repair a leaky Delta bathroom sink faucet.

Tools and Materials

Before you begin, you will need to gather the following tools and materials:

Adjustable wrench
Allen wrench or hex key (optional)
Faucet repair kit (available at most hardware stores)
Plumber's putty (optional)

Step-by-Step Instructions

Once you have gathered your tools and materials you can follow these step-by-step instructions to repair your leaky Delta bathroom sink faucet:

Turn off the water supply. There will be two shut-off valves under the sink, one for the hot water and one for the cold water. Turn both valves clockwise to turn off the water supply.
Remove the faucet handle. Use the Allen wrench or hex key (if required) to loosen the set screw on the top of the faucet handle. Pull the handle straight up to remove it.
Remove the cartridge. Use an adjustable wrench to loosen the cartridge retaining nut. The nut is usually located just below the handle. Once the nut is loose, you can pull the cartridge straight out of the faucet body.
Replace the O-rings. The O-rings are small rubber gaskets that create a seal between the cartridge and the faucet body. Over time, these O-rings can become worn or damaged, causing a leak. Use a faucet repair kit to replace the O-rings.
Reinstall the cartridge. Insert the new O-rings into the cartridge and then reinstall the cartridge into the faucet body. Tighten the cartridge retaining nut until it is snug.
Reinstall the faucet handle. Push the handle straight down onto the cartridge. Tighten the set screw until it is snug.
Turn on the water supply. Open both shut-off valves to turn on the water supply. Check for leaks. If there are any leaks, tighten the cartridge retaining nut or the faucet handle until the leaks stop.

If you have followed these instructions carefully, you should now have successfully repaired your leaky Delta bathroom sink faucet. If you are still experiencing leaks, you may need to call a plumber for assistance.