Dirty Disaster? Stop Sewer Backups Before They Wreck Your Home!

By Jennifer Barnett · Feb 21, 2025

Experiencing a sewer backup can be one of the most unpleasant issues homeowners face. The foul sewage smell in the house can make living conditions unbearable, and understanding the causes and solutions for a sewer backup is critical in managing this nasty problem. Whether you’re dealing with a minor blockage or a significant backup, knowing how to fix a sewer backup or when to call a plumber can save you from extensive damage and discomfort. This guide will walk you through the most common sewer backup causes, how to fix a sewer backup, and preventive measures to avoid future issues.

Sewer Backup Causes

Understanding what leads to a sewer backup can help you take proactive steps to prevent it. Here are some common causes:

1. Tree Roots

Tree roots can infiltrate sewer lines, causing blockages and damage. As trees grow, their roots seek moisture and can invade even the smallest cracks in your sewer pipes.

2. Blockages in the Sewer Line

Blockages can occur due to the accumulation of grease, hair, and other waste that shouldn't be flushed down the drain. Over time, these materials can build up and block the flow of sewage.

3. Broken or Collapsed Sewer Lines

Older homes with clay pipes are particularly susceptible to collapsing or breaking, leading to serious backups.

4. Heavy Rainfall and Flooding

Excessive rainfall can overwhelm municipal sewer systems, causing sewage to back up into homes, especially those with basements.

5. Sewer Line Damage

Construction, ground shifts, or natural wear and tear can cause sewer lines to crack or break, leading to backups.

How to Fix a Sewer Backup

When dealing with a sewer backup, swift action is essential. Here are some methods to tackle the problem:

1. Perform a Plumbing Snake or Auger

A plumbing snake, or auger, can break through minor blockages in your sewer line.

Steps:

1. Wear Protective Gear: Put on gloves and safety goggles.

2. Insert the Snake: Push the snake or auger into the sewer line until you reach the blockage.

3. Turn the Handle: Rotate the handle to break up or hook the blockage.

4. Remove the Blockage: Extract the snake and check if the blockage has been cleared.

2. Use Chemical Drain Cleaners

Chemical cleaners are a quick and effective method for clearing minor blockages. However, use them sparingly to prevent damage to your pipes.

Steps:

1. Read Instructions: Follow the product’s instructions carefully.

2. Pour the Cleaner: Pour the recommended amount into the drain.

3. Wait: Allow the cleaner to sit for the advised time.

4. Flush with Water: Run hot water to flush the pipes.

3. Hydro Jetting

For severe blockages, hydro jetting can be an effective solution. This method uses a high-pressure water jet to clear out debris, roots, and buildup from your sewer lines.

Steps:

1. Locate an Access Point: Find a suitable access point for the hydro jet.

2. Insert the Hose: Insert the hydro jet hose into the sewer line.

3. Activate the Jet: Turn on the hydro jet to blast away the blockage.

4. Inspect: Use a sewer camera to ensure the blockage is completely cleared.

4. Plumber for Sewer Backup

For complex or persistent issues, calling a professional plumber is the safest option. A plumber can properly diagnose the problem and recommend the most effective solution.

Sewage Smell in House: What to Do

The presence of a sewage smell in your house is not just unpleasant; it could indicate a more serious issue with your plumbing system. Here’s what to do:

1. Identify the Source

Steps:

1. Check Drains and Fixtures: Inspect sinks, tubs, and toilets for slow drainage or gurgling sounds.

2. Inspect the Basement or Crawlspace: Look for standing water or dampness.

3. Check for Visible Leaks: Look for signs of leaking pipes, particularly where the septic or sewer line meets the house.

2. Use Air Fresheners and Ventilation

Air fresheners can temporarily mask the odor, while proper ventilation helps disperse the smell.

Steps:

1. Open Windows and Doors: Allow fresh air to circulate.

2. Use Air Fresheners: Use sprays or plug-in air fresheners to reduce odor.

3. Install Ventilation Fans: Use fans to increase airflow.

3. Clean Drains and Fixtures

Sometimes, a thorough cleaning can eliminate the sewage smell.

Steps:

1. Use Baking Soda and Vinegar: Pour a mixture of baking soda and vinegar down the drain, followed by hot water.

2. Use Enzyme Cleaners: Apply enzyme cleaners designed to break down organic matter in drains.

Preventing Sewer Backups

Prevention is always better than cure. Here’s how you can prevent sewer backups:

1. Regular Maintenance

Schedule routine maintenance for your plumbing system to catch small issues before they become big problems.

Steps:

1. Inspect Pipes Regularly: Look for signs of wear and tear.

2. Clean Drains: Use enzyme-based cleaners periodically.

3. Schedule Professional Inspections: Hire a plumber for regular inspections and maintenance.

2. Proper Disposal Practices

Being mindful of what you flush down the drain can significantly reduce the risk of blockages.

Tips:

1. Avoid Flushing Non-Flushable Items: Never flush items like sanitary products, diapers, or wipes.

2. Dispose of Grease Properly: Pour grease into a container and dispose of it in the trash instead of down the drain.

3. Install a Backwater Valve

A backwater valve is a device that allows sewage to flow out of your home but prevents it from flowing back in. This is especially beneficial for homes prone to sewer backups.

Steps:

1. Consult a Professional: Hire a plumber to evaluate if a backwater valve is suitable for your home.

2. Install the Valve: Have the valve installed in your main sewer line.

3. Regular Maintenance: Ensure the valve is inspected and maintained regularly.

4. Pipe Insulation

In colder climates, insulating your pipes can prevent them from freezing and causing backups.

Steps:

1. Measure and Cut Insulation: Tailor the insulation to fit your pipes.

2. Apply Insulation: Wrap the insulation around your pipes, particularly those in unheated areas.

Conclusion

Sewer backups are more than just an inconvenience; they can cause serious property damage and health hazards. By understanding the common sewer backup causes and knowing how to fix a sewer backup, you can tackle minor issues yourself and know when it's time to call a plumber. Preventative measures such as regular maintenance, proper waste disposal, and installing a backwater valve can help you avoid the nightmare of a sewer backup altogether.

For professional advice and assistance, consider using HouzTask AI to get your questions answered or Find a Pro to connect with trusted plumbing professionals in your area.