A San Jose Plumber Shares What Really Causes Main Sewer Line Clogs
Tuesday, July 29th 2025, 12:55 PM

Understanding the Hidden Culprits Behind Costly Sewer Line Backups

San Jose, United States - July 28, 2025 / Superior Plumbing /

San Jose Plumber Shares What Really Causes Main Sewer Line Clogs

Plumbers in San Jose, CA,

Homeowners face unexpected plumbing emergencies when their main sewer lines become blocked, often resulting in costly repairs and unsanitary conditions. Plumbers in San Jose, CA, frequently encounter these blockages, which can affect entire drainage systems. In this release, Superior Plumbing explains what causes the main sewer line to clog.

Everyday Household Items That Create Sewer Line Blockage

Many sewer line blockages originate from everyday items that homeowners mistakenly believe are safe to flush or wash down drains. Non-flushable materials pose the greatest threat to sewer systems, despite manufacturers labeling some products as "flushable."

Superior Plumbing notes that the following items frequently cause severe blockages:

  • Wet wipes and baby wipes (even those labeled flushable)

  • Feminine hygiene products and tampons

  • Paper towels and tissues

  • Cotton swabs and dental floss

  • Cat litter and disposable diapers

These materials do not break down like toilet paper; instead, they accumulate in pipes over time, potentially causing blockages. Property owners who consistently flush these items create conditions that can lead to a complete drainage system backup.

Tree Root Intrusion and Pipe Deterioration Issues in San Jose

When asking "What causes the main sewer line to clog?" tree root intrusion is often one of the most damaging factors, especially in older neighborhoods with mature landscaping.

Clay and cast iron pipes often experience the most severe root damage due to weak joint construction. Small cracks provide entry points where roots penetrate and expand, creating complete blockages and extensive pipe deterioration.

Grease Buildup and Improper Disposal Practices

Grease buildup creates some of the most stubborn and expensive blockages in main sewer lines. Many homeowners pour cooking oil, grease, and fats down kitchen drains without realizing that these substances solidify when they cool. Hot grease appears harmless as it flows down drains, but it quickly hardens inside pipes and begins to trap other debris, such as coffee grounds, eggshells, and potato peels.

Superior Plumbing Helps Prevent Costly Sewer Emergencies in San Jose

Understanding what causes the main sewer line to clog empowers homeowners to take preventive action and avoid expensive emergency repairs. Superior Plumbing offers comprehensive diagnostic services and professional sewer line cleaning to ensure that drainage systems function properly year-round. Their experienced technicians utilize state-of-the-art equipment to identify problems before they escalate into major emergencies, saving customers thousands in potential damage costs.

About Superior Plumbing

Superior Plumbing has served the San Jose area and its surrounding communities for over two decades, providing comprehensive plumbing solutions for residential and commercial properties. The company specializes in sewer line diagnostics, repairs, and preventive maintenance services.  

Homeowners can contact Superior Plumbing at (408) 709-7370 to learn more about "What causes the main sewer line to clog?"

Contact Information:

Superior Plumbing

6132 Bollinger Rd
San Jose, CA 95129
United States

Erasmo Soto
(408) 446-1760
https://superiorplumbing.net

Original Source: https://superiorplumbing.net/media-room

About

Superior Plumbing has been in business in the Bay Area since 2004. Our plumbers are highly trained and experienced, to offer you the best possible service in a timely manner. We offer a variety of plumbing installation and plumbing repair services.

Contact

Erasmo Soto
Superior Plumbing

6132 Bollinger Rd
San Jose, CA, 95129, United States

E-Mail aasuperiorplumbing@gmail.com

Phone (408) 446-1760

Website

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