Two Options for Below-Grade Bathrooms
When you need a bathroom below your main sewer line (typically a basement), you have two main options: a macerating toilet system or a sewage ejector pump system. Both solve the same fundamental problem — getting waste from a low point up to the sewer — but they work very differently.
How Each System Works
Macerating Toilet
A macerating toilet grinds waste into a fine slurry using a blade, then pumps it through a small-diameter pipe (3/4" – 1") up to your sewer line. The macerator unit sits behind the toilet at floor level.Sewage Ejector Pump
A sewage ejector pump sits in a pit (basin) below the floor. Waste flows by gravity into the pit, and when it reaches a certain level, the pump activates and pushes the waste through a full-size discharge pipe (2") up to the sewer line.Side-by-Side Comparison
| Feature | Macerating Toilet | Sewage Ejector Pump |
|---|---|---|
| Installation cost | $1,500 – $3,500 | $3,000 – $8,000+ |
| Concrete breaking required? | No | Yes (for the pit) |
| Installation time | 1 day | 3 – 7 days |
| Noise level | 45 – 60 dB (dishwasher-level) | 60 – 75 dB (louder) |
| Discharge pipe size | 3/4" – 1" | 2" |
| Fixtures supported | Toilet + 1-2 sinks + shower | Multiple bathrooms + laundry |
| Pump location | Behind toilet (floor level) | Below floor (in pit) |
| Typical lifespan | 10 – 15 years | 7 – 10 years (pump); 20+ years (pit) |
| Maintenance | Descale every 3-6 months | Annual pit inspection |
| Handles high volume? | Moderate (single bathroom) | High (multiple fixtures) |
| Common failure parts | Microswitch, membrane ($45-$55) | Float switch, check valve, pump motor |
When to Choose a Macerating Toilet
A macerating toilet is the better choice when:
- You want to avoid breaking concrete — This is the #1 reason people choose macerating systems
- Budget is a concern — Total installed cost is typically 50-70% less than an ejector system
- You need a single bathroom — For one toilet + sink + shower, a macerating system handles it well
- Speed matters — Installation in a day vs a week or more
- You're renting or don't want permanent changes — A macerating system can be removed without major structural work
When to Choose a Sewage Ejector Pump
A sewage ejector pump is the better choice when:
- You need to serve multiple bathrooms — Ejector systems handle higher volumes better
- You want to add a basement laundry — Washing machine discharge is high-volume and better suited to an ejector
- Your municipality requires it — Some local codes don't permit macerating systems, or require full-size discharge pipes
- Very high usage — Commercial settings or large families with heavy daily use
The Noise Question
This is a big concern for many homeowners. Macerating toilets typically produce 45-60 dB when running — roughly equivalent to a dishwasher or normal conversation. The sound lasts only 10-15 seconds per flush.
Ejector pumps tend to be louder (60-75 dB) and the activation can feel more jarring since it happens after waste accumulates in the pit — sometimes activating unexpectedly.
Both can be mitigated with sound insulation. See our guide on reducing macerating toilet noise.
The Bottom Line
For most Canadian homeowners adding a single basement bathroom, a macerating toilet system is the practical choice. It's faster to install, significantly cheaper, doesn't require breaking concrete, and handles a standard three-piece bathroom with ease.
An ejector pump makes sense when you need to handle high volumes, serve multiple fixtures across a large basement, or when your local code requires it.
Ready to Choose?
Browse our selection of macerating toilet systems, or contact us for personalized advice on the right solution for your basement project.