When does a home need a sewer ejector pump versus a grinder pump?

An ejector pump moves solid waste from a basin to a sewer or septic line that sits at a higher elevation, and is typical for basement bathrooms or below-grade laundry. A grinder pump macerates solids first and pushes them through a smaller-diameter pressurized line over longer distances or against higher head. We size the pump and basin based on fixture units served, vertical lift, and run length.

How long does an ejector pump typically last?

A residential sewer ejector pump generally lasts 7 to 10 years. Service life is heaviest impacted by what gets flushed (wipes and feminine products are the leading killer), how often the float cycles, and whether the basin is properly vented. We recommend annual inspection of the float, check valve, vent, and alarm system to catch wear before a failure.

Does an ejector pump need its own vent?

Yes. Ejector basins must be vented to atmosphere, separately from a sump pump vent, so sewer gas does not enter the home and so the pump can move waste without creating a vacuum. The vent is required by California plumbing code and is one of the items we verify on every inspection and install.

Sewer Ejector Pump | Marin, Sonoma & Napa

Q: How often should pumps be serviced?

At least once a year, or more frequently for high-use systems like sump pumps.

Q: What causes sewer backups?

Common causes include tree roots, grease buildup, damaged pipes, and flushing inappropriate items.

Q: What's the difference between a sump pump and a sewer ejector pump?

A sump pump removes groundwater from basements or crawlspaces, helping prevent flooding. A sewer ejector pump handles wastewater from lower-level bathrooms or laundry rooms and pushes it up to the main sewer line. Both are vital for homes below grade level.

At Ongaro & Sons, we understand that plumbing systems can be complex, and sometimes, a standard gravity-fed sewer line system just won’t cut it.

If your bathroom, laundry room, or any plumbing fixture is located below your main sewer line, a sewage ejector pump (sometimes called a sewage lift pump) might be the solution you need to keep your home functioning smoothly.

As one of the premier plumbers in Northern California since 1932, Ongaro & Sons understands how critical a functioning sewer ejector pump is to your plumbing system. Whether you’re installing a new unit, replacing an old one, or troubleshooting an issue, our licensed plumbers bring decades of experience and the latest equipment to get the job done right.

We proudly serve Marin, Sonoma, and Napa counties, with prompt, professional service.

What Is a Sewage Ejector Pump, and How Does it Work?

A sewage ejector pump is a submersible pump installed in a basin below the drain line. When wastewater enters the basin, a float switch triggers the pump to activate. The pump then grinds up waste (depending on the type of pump) and forcefully pumps the wastewater uphill to the main sewer line, preventing backups and ensuring proper drainage.

Why Your Home Needs a Sewer Ejector Pump

If your home has a basement or lower-level bathroom, chances are you’ll need a sewage ejector pump. Here’s why:

Septic Systems

If your home is connected to a septic system, a sewage ejector pump might be required to ensure proper wastewater flow, especially if the septic tank is located at a higher elevation than your basement.

Old or Inefficient Plumbing Systems

Prevents Flooding, Backups, and Overflows

Increased Home Value

Efficiency in Low Water Pressure Situations

Peace of Mind

If you’re unsure whether your home needs a sewage ejector pump, consult with a qualified plumber to assess your specific situation and recommend the best solution.

Your Comfort, Our Priority

Ongaro & Sons is your trusted heating, cooling, plumbing, electrical, and solar expert—specializing in reliable maintenance and repair services that keep your home running efficiently year-round.

Our certified technicians deliver unmatched expertise with fast, friendly service across Northern California. From HVAC tune-ups to plumbing repairs and electrical upgrades or solar solutions, we focus on energy-efficient performance and long-term comfort. Count on us to maintain the systems that power your home and keep your environment just the way you like it.

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PHCC- and NATE-Certified Experts

Our technicians are licensed, experienced, and trained to service all makes and models.

Locally Owned and Operated

Serving the Napa, Marin, and Sonoma communities with personalized, hometown service.

Reliable Repairs

We respond quickly and get the job done right the first time—no surprises.

Sewage Ejector Pump Installation, Repair, and Maintenance

You want a licensed plumber to install, repair, and maintain your home’s sewage ejector pumps. This kind of work requires specialized tools and skills, and it can also get messy pretty fast without the proper training and knowledge. There are also sizing issues and local codes to consider.

Fortunately for those living in Marin, Sonoma, and Napa counties, our sewage ejector pump experts at Ongaro & Sons are always available to help. Not only are our trained experts experienced with sewage ejector pump installation, repair, and maintenance, but they are also fully versed in all local codes and requirements.

Additional Tips for Optimal Sewage Ejector Pump Performance:

Be Mindful of What Goes Down the Drain

One of the best ways to keep your sewage ejector pump working properly is to be mindful of what you flush or drain. Avoid putting grease, wipes, hygiene products, or anything that doesn’t readily biodegrade down the drain, as these items can clog the system and damage the pump.

Schedule Regular Maintenance

Consider a Grinder Pump

Contact Ongaro & Sons for Booster Pump Repair and Replacement Near You

Regarding booster pumps, Ongaro & Sons is your trusted partner for installation, repair, maintenance, and upgrades. Our commitment to excellence, certified expertise, and customer-first approach makes us the go-to choice for all your booster pump needs in Marin, Sonoma, and Napa counties, from Corte Madera, Kenwood, to Two Rock, Cloverdale, Napa, and surrounding cities in Northern California.

Contact us at 415-741-2820 to learn more about our services or schedule an appointment online. Experience the Ongaro & Sons difference and enjoy reliable water pressure and exceptional service.

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Ongaro Maintenance Plans

Annual maintenance on your home systems provides safeguards and comfort to you and your family. Neglecting your routine checkups can potentially put everyone at risk.

With these annual visits, our experienced technicians use the latest technology to help find unsafe problems before they can become bigger problems.

Maintenance Plans