Top 5 Common Plumbing Mistakes and How to Avoid Them

Oct 31, 2025By Joseph McCollum
Joseph McCollum

Plumbing issues can be a homeowner's nightmare, often leading to costly repairs and significant inconvenience. Fortunately, many common plumbing mistakes are easily avoidable with a little knowledge and care. Here are the top five plumbing mistakes and how you can steer clear of them.

1. Overusing Chemical Drain Cleaners

One of the most common mistakes is relying heavily on chemical drain cleaners to solve clogging problems. While these solutions might offer a quick fix, they can cause long-term damage to your pipes.

Why It’s a Problem

Chemical drain cleaners can corrode pipes over time, leading to leaks and further plumbing issues. They are also harmful to the environment.

How to Avoid It

Instead of chemical cleaners, try using a plunger or a drain snake. Regular maintenance, such as flushing your drains with hot water and vinegar, can also help prevent clogs.

plumbing tools

2. Ignoring Small Leaks

Another mistake is neglecting small leaks, thinking they are too minor to cause any real damage. However, even the smallest leak can lead to significant water wastage and damage over time.

Potential Consequences

Small leaks can escalate, causing mold growth, structural damage, and increased water bills.

Prevention Tips

Regularly inspect your plumbing fixtures and repair any leaks immediately. If you’re unsure, consult a professional plumber to assess the situation.

3. Incorrectly Installing Fixtures

DIY plumbing can save money, but improper installation of fixtures is a common mistake among homeowners.

Common Errors

Installing fixtures without proper sealing or using the wrong materials can lead to leaks and inefficient operation.

installing faucet

How to Do It Right

Follow the manufacturer’s instructions closely or hire a professional for installation. Ensure all connections are secure and sealed properly.

4. Using the Wrong Tools

Using improper tools can damage plumbing components, turning a minor fix into a major repair.

Why Tool Selection Matters

Using the wrong wrench or not having the right size can strip fittings and cause leaks.

Tool Recommendations

  • Invest in a basic plumbing toolkit.
  • Ensure you have adjustable wrenches, pipe cutters, and a plunger.
plumbing toolbox

5. Flushing Inappropriate Items

Toilets are not trash cans, yet many people flush items that should be disposed of elsewhere, leading to major blockages.

Items to Avoid Flushing

  • Wipes (even those labeled as "flushable")
  • Cotton swabs
  • Feminine hygiene products

Proper Disposal Methods

Dispose of these items in the trash to avoid clogging your plumbing system. Educate your family about what is safe to flush.

By being aware of these common plumbing mistakes and taking proactive steps to avoid them, you can maintain a healthy plumbing system and save yourself from unnecessary headaches and expenses. Remember, when in doubt, consult a professional to ensure your plumbing is in top shape.