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Plumbing Tips

5 Common Plumbing Problems and How to Fix Them

By Mike Holt, NJ Master Plumber · February 13, 2025 · 2 min read

4.9 from 174 Google reviews · NJ Master Plumber Lic. #36BI01345600

Graphic reading "What are common plumbing problems and how can you fix them?"

Plumbing issues can disrupt your daily routine and lead to costly repairs if not addressed promptly. While some problems require professional intervention, many common plumbing issues can be fixed with a little knowledge and effort. Here are five frequent plumbing problems and how you can handle them.

1. Clogged Drains

Slow or clogged drains are one of the most common household plumbing issues. Hair, soap scum, food particles, and grease can accumulate over time, causing blockages.

How to Fix It:

  • Use a plunger to dislodge minor clogs.
  • Pour a mixture of baking soda and vinegar down the drain, let it sit for 15 minutes, then flush with hot water.
  • If the clog persists, use a drain snake to remove the blockage.
  • Avoid chemical drain cleaners as they can corrode your pipes over time.

2. Running Toilet

A running toilet can waste hundreds of gallons of water per day, increasing your utility bill. The culprit is usually a faulty flapper, fill valve, or float mechanism.

How to Fix It:

  • Remove the tank lid and inspect the flapper. If it’s worn out or not sealing properly, replace it.
  • Check the float and adjust its height to ensure it stops water flow at the correct level.
  • If the fill valve is malfunctioning, replacing it can often solve the problem.

3. Low Water Pressure

Low water pressure in your sink or shower can be frustrating. It’s often caused by mineral buildup in the aerator or a hidden plumbing leak.

How to Fix It:

  • Unscrew the aerator on the faucet or showerhead and soak it in vinegar overnight to remove mineral deposits.
  • If the problem persists, check for leaks in your plumbing system. A sudden drop in pressure could indicate a hidden pipe leak.

4. Leaky Faucets

A dripping faucet may seem minor, but it can waste gallons of water over time and increase your water bill.

How to Fix It:

  • Turn off the water supply and disassemble the faucet.
  • Replace the worn-out washer, O-ring, or cartridge inside the faucet.
  • Reassemble and test for leaks.

5. Water Heater Issues

If your water heater isn’t producing hot water, it could be due to sediment buildup or a malfunctioning heating element.

How to Fix It:

  • Flush the tank annually to remove sediment.
  • Check the thermostat and heating elements for issues.

For major plumbing problems, don’t hesitate to call a professional. Regular maintenance can prevent costly repairs and keep your plumbing system in top shape!

Need a licensed plumber?Mike gives you a flat price before any work starts. Book by 9 a.m. for same-day service.
Mike Holt
About the author

Michael Holt

Owner and operator of Plumbing Doctor, NJ Master Plumber (Lic. #36BI01345600) and U.S. military veteran.

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Do this now

  1. Shut the main valve. Usually where the water line enters, near the meter.
  2. Kill power to anything wet, from the breaker panel, if you can reach it dry.
  3. Open a low faucet to drain the pipes and take pressure off the leak.
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