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DIY Under Sink Plumbing Repairs (Homeowner’s Guide)

technician fixing the leaking sink

We all know the feeling. You’re going through your day, doing the dishes, when suddenly the kitchen sink drain won’t, well…drain. You try everything that you can think of, but the drain hole won’t do its job.

Maintaining a functional and leak-free under-sink plumbing system is crucial for a smoothly running household. However, just like any other part of your home, under-sink plumbing can develop issues over time. The good news is that many common under-sink plumbing problems are manageable with some basic tools and a little know-how.

In this guide, we’ll explore:

  • Frequent under-sink plumbing issues
  • Step-by-step solutions

Keep reading to get your kitchen sink, bathroom sinks, or any other plumbing areas of your house back under control.

8 Common Under-Sink Plumbing Issues

Plumbing issues can be stressful for any homeowner. But knowing what they are and how to fix them can help alleviate stress and lead to less damage. Here are 8 of the most common types of plumbing issues and simple DIY fixes for you to take on.

1) Leaky Pipes and Joints

Leaks are perhaps the most common under-sink plumbing issue. They can occur at the joints where pipes are connected or due to cracks in the pipes themselves. Leaks not only waste water but can also lead to water damage and mold growth if left unaddressed.

 ✅ Solution: Inspect the pipes and joints for any visible signs of leakage. Tighten loose connections gently using a pipe wrench or pliers. For minor cracks, consider using epoxy or plumber’s putty as a temporary fix. If the pipes are severely damaged, replacing them might be necessary.

2) Clogged Drains

A clogged drain can cause water to back up, leading to slow-draining sinks and potential overflows. Common culprits for clogs include hair, soap residue, and food particles.

✅ Solution: Start by using a plunger to create pressure and dislodge the clog. If that doesn’t work, try using a plumbing snake or drain auger to break up and remove the obstruction. Regularly using a sink strainer can help prevent future clogs. It’s also a good idea to be conscious about the items you put in your garbage disposal.

3) Dripping Faucets

A dripping faucet not only wastes water but can also become an irritating source of noise. Most drips are caused by worn-out washers or O-rings.

✅ Solution: Turn off the water supply to the faucet. Disassemble the faucet handle and replace the faulty washer or O-ring. Make sure to turn off the water supply and follow manufacturer instructions during disassembly and reassembly.

4) Low Water Pressure

If your sink’s water flow seems weak, you might be dealing with low water pressure. This can be caused by mineral deposits in the aerator or a partially closed shut-off valve.

✅ Solution: Remove the faucet aerator and clean it by soaking it in vinegar overnight to dissolve mineral buildup. If the problem persists, check the shut-off valve under the sink to ensure it’s fully open.

5) Foul Odors

Unpleasant smells emanating from under the sink can be caused by trapped food particles, stagnant water, or mold growth.

✅ Solution: Clean the area thoroughly, removing any debris or food particles that may be causing the odor. Run water through the drain to ensure proper drainage and eliminate stagnant water. To prevent future odors, consider using enzyme-based drain cleaners or regularly pouring baking soda and vinegar down the drain, followed by hot water.

6) P-trap Issues

The P-trap is a U-shaped pipe designed to prevent sewer gases from entering your home. However, it can become clogged or develop leaks over time.

✅Solution: Place a bucket under the P-trap to catch any water. Loosen the nuts at both ends of the trap and carefully remove it. Clean out any debris and inspect for cracks. Replace the P-trap if it’s damaged. Reassemble the trap and ensure all connections are tight. Using a sink strainer

7) Frozen Pipes

In colder climates, under-sink pipes can freeze during winter, potentially causing them to burst and lead to water damage when they thaw.

✅Solution: To prevent frozen pipes, insulate them with foam pipe insulation. If the pipes are already frozen, carefully thaw them using a hairdryer on low heat or by wrapping warm towels around them. Avoid using open flames or high heat sources.

8) Water Hammer

A water hammer is a loud banging noise that occurs when water suddenly stops or changes direction within the pipes.

✅Solution: Water hammer can be mitigated by installing water hammer arrestors, which are devices that absorb the shock of sudden water pressure changes.

Get Professional Assistance

Let’s face it. Not all of us are plumbing experts. But with Black Tie plumbing on your side, you don’t have to be! All of our highly trained team members can help you assess the situation and come up with workable solutions in a timely manner. Let us take care of the plumbing’s hard work so that you can get back to the things that matter to you. Contact us today to get started!

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