What is an upflush toilet and how does it work?
February 23, 2012
An upflush toilet is a type of macerating toilet that allows you to install a bathroom in places where a traditional toilet won’t work. Instead of depending on gravity and a below-floor drain, it grinds waste into a liquid slurry and pumps it to your home’s main drain line. This makes it a practical solution for basement bathroom installations, additions, or any space far from existing plumbing.
TL;DR
- An upflush toilet grinds waste and pumps it to the main drain line instead of relying on gravity.
- It’s ideal for basements, attics, additions, or rooms far from existing plumbing.
- The system is portable and can often be relocated with minimal disassembly.
- It enables toilet installation where traditional plumbing isn’t feasible.
How an upflush toilet works
- Maceration process: When you flush an upflush toilet, waste and water move into a macerating unit located behind the toilet or inside the wall. A blade inside the unit grinds the waste into a fine slurry.
- Pumping: After maceration, a pump activates and pushes the liquefied waste upward or horizontally into the home’s main drain line, allowing installation in locations below or far away from standard plumbing.
- Reset and refill: Once pumping is complete, the toilet refills with water and functions like a conventional toilet for the next use.
Where upflush toilets are useful
Because an upflush toilet doesn’t rely on a floor drain, it can be installed almost anywhere. Homeowners use them for:
- Basement bathrooms: A simple way to add a bathroom without breaking concrete.
- Attics or additions: Useful when running new plumbing lines is difficult or expensive.
- Accessibility needs: In some cases, a toilet can even be installed beside a bed for someone with limited mobility.
- Temporary setups: Many macerating units can be relocated by removing a few screws, making them a flexible choice for renovations.
If you’re planning a toilet installation in a challenging location, an upflush system may be a practical way to add bathroom convenience without major plumbing work.