Common Septic System Issues and How to Fix Them

May 10, 2025

Septic systems are essential for treating wastewater in rural and suburban areas. They work by separating solid waste from liquids and filtering out harmful contaminants. However, when issues arise with the system, it can lead to unpleasant odors, costly repairs, and even health hazards. In this blog post, we’ll discuss some common septic system problems and how to fix them.

1. Clogged Drain Lines

One of the most frequent septic system issues is clogged drain lines. Over time, debris, grease, and solid waste can build up in the pipes, causing a blockage. This can result in slow draining or sewage backups. To prevent this, avoid flushing non-biodegradable items or pouring grease down the drain.


Solution: To address this, a professional septic service technician can inspect the system and clear any blockages. Regular maintenance, such as pumping the septic tank, can also help prevent clogs from occurring.

2. Septic Tank Overflows

When a septic tank becomes too full, it can overflow, leading to backups and unpleasant odors. Overflow occurs when solid waste builds up too quickly and the tank can no longer hold the liquid waste. A tank that is not pumped regularly is more likely to overflow.


Solution: The solution here is simple: have your septic tank pumped out regularly, typically every 3 to 5 years, depending on household usage. Scheduling regular inspections can also help detect potential issues before they become serious.

3. Leaking or Broken Pipes

Cracked or leaking pipes in the septic system can cause wastewater to leak into the surrounding soil, leading to foul odors and contamination. This is not only unsanitary but can also pose a health risk.


Solution: If you notice wet spots around your drain field or foul odors, contact a professional to inspect the pipes for leaks or cracks. Broken pipes can often be repaired by replacing the damaged sections or installing new pipes.

4. Slow Drainage

Slow drainage is another common issue that signals something might be wrong with your septic system. A full septic tank, clogged drain field, or damaged pipes often cause it.


Solution: If your drains are slow, the first step is to check if the septic tank needs pumping. If the tank is not the issue, you may need to inspect the pipes or the drain field. A professional septic service provider can help diagnose and address the problem.

5. Sewage Backup

Sewage backups are among the most severe septic system issues. This typically happens when there is a clog or a tank overflow, causing wastewater to back up into your home or yard.


Solution: To fix a sewage backup, immediately call a septic system professional to diagnose the problem. In many cases, clearing the clog or pumping the septic tank can resolve the issue.


If you're experiencing septic system issues, don’t wait for the problem to worsen. Contact On Time Septic LLC, a trusted septic service provider in Irving, Texas. With 40 years of experience, we offer comprehensive septic system maintenance, repair, and installation services. Our team ensures that your system runs efficiently, preventing costly repairs in the future. Reach out today to schedule an inspection or service!

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