How to Fix Leaks Under Your Bathroom Sink

Dealing with a leak under your bathroom sink can be frustrating, but with the right steps, you can fix it yourself. This guide will walk you through the process of fixing leaks around the drain and the flexible hose, as well as offer general advice for comprehensive repair. If the leak persists, professional plumbing assistance may be necessary.

Leak Around the Drain

Leaking around the drain is a common issue that can be easily resolved with a few simple steps.

Tighten the Drain Nut

The first step is to use a wrench to gently tighten the drain nut underneath the sink. Ensure you don’t overtighten, as this could damage the sink or the drain. Caution: Over-tightening can cause cracks or other damage.

Inspect the Washer

If tightening the drain nut doesn’t stop the leak, you may need to replace the washer. To do this, turn off the water supply, remove the drain assembly, and replace the rubber washer with a new one.

Seal with Plumbers Putty

If the leak continues, apply plumber’s putty around the drain flange before reassembling. This should create a water-tight seal and prevent further leaks.

Leak Around the Flexible Hose

Leaks around the flexible hose can also be problematic and require specific steps to address.

Tighten the Connection

Check the connection where the flexible hose meets the supply line or faucet. If the connection is loose, use a wrench to tighten it.

Check for Damage

Inspect the hose for any cracks or damage. If the hose is damaged, it will need to be replaced.

Replace Washers

Flexible hoses often have washers at the connections. Check these washers for wear and replace them if needed.

Additional Tips for Sink Repairs

Turn Off Water Supply: Before making any repairs, ensure the water supply is turned off to prevent further leaks. Use Towels: Keep towels handy to soak up any water that spills during repairs. Test for Leaks: After making the repairs, turn the water supply back on and test for leaks to ensure the work is done correctly.

Additional Considerations

It's worth noting that there might be more complex issues beyond just the drain or hose. Sometimes, the leak may be coming from the faucet stem or cartridge. If you notice a leak right at the faucet handle, it might be necessary to remove the handle and check the stem or o-ring. If you're not sure about the specific brand of your faucet, YouTube can be a valuable resource. For Delta faucets, you can find detailed instructions and video tutorials to guide you through the repair process.

In conclusion, fixing a leak under your bathroom sink is often straightforward with the right tools and a bit of effort. However, if you encounter persistent issues, don't hesitate to consult a professional plumber for expert assistance. Remember, regular maintenance can help prevent these issues from arising in the first place. Happy fixing!