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How Sewer Ejector Pumps Work and Why You Need One
How a Sewer Ejector Pump Works
A sewer ejector pump is essential when wastewater from toilets, sinks, or laundry rooms is located below the main sewer or septic line. Here’s how it works:
• Wastewater flows into a sealed ejector pit or basin.
• A float switch detects the water level and activates the pump.
• The pump pushes wastewater up through a discharge line to the main sewer.
• A check valve prevents backflow into the pit.
• The system automatically shuts off once the pit is drained.
Key Components of a Sewer Ejector Pump System
Understanding the parts of the system helps you recognize when service is needed:
• Pump Motor – Typically between ½ to 1 horsepower for residential systems
• Ejector Pit or Basin – Collects wastewater until the pump engages
• Float Switch – Activates the pump when wastewater reaches a certain level
• Discharge Pipe – Routes waste to the sewer or septic line
• Check Valve – Stops wastewater from returning to the pit
• Vent Pipe – Directs gases to the home’s vent stack for safe ventilation
Do You Need a Sewer Ejector Pump?
You likely need a sewer ejector pump if:
• You’re installing plumbing below the main sewer line, such as in a basement
• You’re remodeling or adding a new bathroom to a lower level
• You’ve experienced slow drains or sewage backups in downstairs fixtures
• Your septic system is higher than your plumbing fixtures and requires a lift
Benefits of Installing a Sewer Ejector Pump
• Prevents sewage backups in lower-level fixtures
• Supports basement bathrooms or laundry additions
• Handles solid waste, unlike sump pumps
• Runs automatically, offering peace of mind
• Long lifespan when properly installed and maintained
Why Homeowners Trust Repipe Champions
• Fully licensed, bonded, and insured technicians
• Fast installations and fully code-compliant work
• Transparent, upfront pricing with no surprise charges
• Trusted across Santa Clara and San Mateo Counties
• Available for emergency service, 24/7
Schedule a Free Quote Today
Call Repipe Champions at +1 (408) 295-4309
We provide professional, reliable, and affordable sewer ejector pump solutions. Book online or speak directly with a technician to get started today.


Top 4 Sewer Ejector Pumps for Reliable Wastewater Removal
Choosing the right sewer ejector pump is critical when installing basement bathrooms or fixtures below the main sewer line. Here are four of the best-performing options on the market—each with unique advantages for different home setups.
1. Liberty Pumps PRG101A – Best Overall
Powerful, Durable, and Clog-Resistant
Key Features:
• 1 HP motor; pumps up to 2,760 GPH at 10 feet
• Integrated grinder system to shred solids, wipes, and debris
• Heavy-duty cast iron housing
• Vertical float switch for automatic functionality
Why It’s Great:
The Liberty PRG101A is a grinder-style ejector pump designed for tougher conditions. It’s ideal for homes that frequently face clogs or produce heavy wastewater. The built-in grinder ensures smooth operation even with challenging materials, making this a top-tier choice for long-term reliability.
2. Zoeller M267 Waste-Mate – Best for Heavy-Duty Use
Reliable and Built to Last
Key Features:
• ½ HP motor; pumps up to 4,320 GPH at 10 feet
• Easily handles solids up to 2 inches in diameter
• Rugged cast iron construction
• Thermally protected motor for longevity
Why It’s Great:
Known for its dependability, the Zoeller M267 is engineered to perform in high-demand environments. Whether it’s a busy household or light commercial setting, this pump delivers consistent, heavy-duty performance without compromise.
3. Wayne RPP50 – Best Budget Option
Affordable and Reliable for Residential Use
Key Features:
• ½ HP motor; pumps up to 4,200 GPH
• Handles up to 2-inch solids
• Lightweight thermoplastic build resists corrosion
• Pre-assembled for fast, hassle-free installation
Why It’s Great:
Wayne’s RPP50 offers excellent value for homeowners looking for basic performance without a high price tag. Though not as rugged as cast iron models, it’s a dependable option for most residential basement installations.
4. Superior Pump 93501 – Best for Smaller Applications
Compact and Efficient for Light-Duty Use
Key Features:
• ½ HP motor; up to 4,200 GPH flow rate
• Capable of handling 2-inch solids
• Durable cast iron base and thermoplastic upper
• Equipped with a tethered float switch
Why It’s Great:
This unit is perfect for homes with a single basement bathroom or limited wastewater demand. It balances efficiency, size, and affordability—making it a solid choice for small-scale needs.
Final Recommendations
• Best Overall: Liberty PRG101A – Grinder pump with maximum performance
• Heavy-Duty Pick: Zoeller M267 – Reliable and built like a tank
• Budget-Friendly Choice: Wayne RPP50 – Affordable and effective
• Light-Duty Winner: Superior Pump 93501 – Compact, reliable, and economical
For expert sewer ejector pump installation or replacement, call Repipe Champions at +1 (408) 295-4309 or book online. We’ll help you choose the right system to meet your household’s needs and ensure code-compliant, professional installation.
Dependable Sewer Ejector Pump Installation in the following cities
Bay Area
Belmont
Burlingame
Campbell
Cupertino
Daly City
Foster City
Fremont
Gilroy
Los Altos
Los Altos Hills
Los Gatos
Menlo Park
Millbrae
Milpitas
Monte Sereno
Morgan Hill
Mountain View
Pacifica
Palo Alto
Portola Valley
Redwood City
San Bruno
San Carlos
San Francisco
San Jose
San Mateo
Santa Clara
Santa Rosa
Saratoga
South San Francisco
Sunnyvale
Woodside
If you are not listed above, please reach out and we'll do our best to assist you.
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