A common question that people ask is whether they can flush the eco-friendly cat litter down their toilet. The answer is yes, you can! The reason why so many people are confused about this is that most regular clay litters are not biodegradable, which means they will not break down in water or soil. This makes them difficult to dispose of in landfills and harmful to the environment because it takes an extremely long amount of time for them to decompose without breaking down into smaller particles (and even then it still isn’t safe).