If you remove the pipe, you liberate the architecture. But where does the waste go?

If you want zero liquid waste and no "soil" to manage, incinerating toilets are a high-tech alternative.

The most common form of "pipeless" technology found in homes today isn't strictly pipeless, but it eliminates the main waste stack. This is the .

Installing a bathroom in a basement, a garage, or a remote cabin often hits a major roadblock: the lack of a traditional gravity-fed waste pipe. Standard toilets rely on a large four-inch pipe buried in the floor to whisk waste away. When that plumbing isn't there, tearing up concrete or knocking down walls to install it can cost thousands of dollars.

– Minus one star for the maintenance and disposal challenges.

Here’s a full, detailed review of a — typically referring to a self-contained composting toilet , incinerating toilet , or cassette toilet (like those in RVs or tiny homes).