In terms of durability, the lifespan of a macerator pump depends on how much it's used. More recent macerator pumps can last up to 15 years when used sparingly, while those used regularly may need replacing after 10 years. A macerator used daily – in your home, for example – should last for around 10 years.

Cons: Upfront Cost and Maintenance The upfront cost of a macerating toilet is almost always higher than for a standard gravity-flush model, and depending on the brand, the cost could be almost twice as high. Even so, installing one is cheaper than modifying existing plumbing to accommodate a standard toilet.

It's true, handling and dumping waste from your RV can be a smelly, messy job, especially when using the standing 3″ sewer hose or “stinky slinky.” A macerator can alleviate some of those concerns. Because of the smaller diameter hose, there is less smell permeating the air around your RV as waste is disposed of.