If you’re renovating a bathroom or adding a toilet in a tricky spot, you may have heard of a macerator pump. But what is a macerator pump, and why might you need one? In this guide, we’ll explain how macerator pumps work, when to use them, and why they’re a practical solution for certain plumbing setups in New Zealand homes.
What is a Macerator Pump?
A macerator pump is a plumbing device designed to grind solid waste and toilet paper into a fine slurry, which can then be pumped through small pipes to your main sewer line. It allows toilets, sinks, and even showers to be installed in areas where traditional gravity-based drainage isn’t possible — like in a basement, garage conversion, or an ensuite that’s far from the main waste line.
How Does a Macerator Pump Work?
When you flush the toilet or drain water, the waste enters the macerator chamber. Inside, sharp blades chop up solid waste while the built-in pump pushes the slurry through narrow pipes, often as small as 25mm in diameter. This makes it possible to run plumbing over long distances or upwards to the main drain, bypassing the need for extensive pipework or major construction.
Where Are Macerator Pumps Used?
Macerator pumps are commonly installed in:
- Basement bathrooms where gravity drainage isn’t available.
- Lofts or upper floors without direct access to the main waste pipe.
- Small commercial spaces like cafés or offices where adding a toilet would otherwise be difficult.
- Tiny homes or mobile homes where compact, efficient waste systems are essential.
Benefits of a Macerator Pump
- Flexible installation: Lets you add toilets or sinks almost anywhere.
- Cost-effective: Avoids expensive excavation or major pipe rerouting.
- Compact design: Fits neatly behind a toilet or inside a bathroom unit.
Things to Consider
While macerator pumps are reliable, they require proper maintenance. Flushing anything other than waste and toilet paper can cause blockages. Regular servicing also helps extend the pump’s lifespan.
Need a Macerator Pump Installed?
Citywide Plumbing and Pumps specialises in macerator pump installation, repairs, and servicing across Auckland. Our licensed plumbers can recommend the best model for your home and ensure it’s fitted correctly for trouble-free use.
Contact us today to find out if a macerator pump is the right solution for your bathroom project.
