Troubleshooting Techniques: One Handle Bathroom Faucet Leaking
A leaking one-handle bathroom faucet can be a nuisance, but often it’s a simple fix. Before calling a plumber, try these troubleshooting steps to identify and address the issue.
Identifying the Source of the Leak
The first step is to determine where the leak is originating from. Observe the faucet carefully, paying attention to the following:
- Dripping from the spout: This usually indicates a worn-out or damaged O-ring or seat washer. The O-ring is a small rubber ring that seals the spout, while the seat washer is a flat washer that sits at the bottom of the spout.
- Leaking from the base of the handle: This suggests a problem with the cartridge or stem, which controls water flow. The cartridge is a single unit that houses the O-rings, seat washer, and other components.
- Leaking from the handle itself: This could indicate a worn-out or cracked handle, or a loose connection between the handle and the cartridge.
Checking for Loose or Worn-Out Parts
Once you’ve identified the source of the leak, you can start checking for loose or worn-out parts.
- Examine the O-ring and seat washer: These are small parts that wear out over time. If they are cracked, torn, or flattened, they need to be replaced.
- Inspect the cartridge: If the leak is coming from the base of the handle, the cartridge may be worn out or damaged. The cartridge should be inspected for signs of wear and tear, such as cracks, scratches, or debris.
- Check the handle: Ensure the handle is securely attached to the cartridge. If it’s loose, tighten it or replace it.
Common Leak Symptoms and Potential Causes, One handle bathroom faucet leaking
| Leak Symptom | Potential Causes |
|---|---|
| Dripping from the spout | Worn-out or damaged O-ring, seat washer, or stem. |
| Leaking from the base of the handle | Worn-out or damaged cartridge, loose cartridge, or worn-out O-rings. |
| Leaking from the handle itself | Worn-out or cracked handle, loose connection between the handle and the cartridge. |
| Constant flow of water | Broken or damaged valve stem, worn-out or damaged cartridge. |
