Toilet Options for Tiny Houses: From Composting to Septic Systems

Introduction to Toilet Options for Tiny Houses

Choosing the right toilet for your tiny house is an essential task that should not be overlooked. Whether you prefer an environmentally friendly option like a composting toilet or a more conventional septic tank system, there are numerous choices available. This article explores the various toilet options for tiny houses, with a focus on off-grid living and sustainability.

Traditional Septic Field and Tank System

A septic field and tank system can be a reliable choice for tiny houses, especially in areas that require it for zoning or permitting a primary dwelling. Septic tanks, although they require regular maintenance, can last for many years without needing to be completely emptied. Rather than installing a costly and complex sewer system, a septic tank offers a simple and economical solution.

However, some areas or circumstances may dictate the use of other options. For instance, in regions with no city water or sewerage, a flush toilet combined with a septic tank system is a common setup. Water is often collected via a rooftop rainwater harvesting system, ensuring that the toilet has a steady supply of water. Septic tanks can go years without requiring sullage service, making them an attractive option for those who value simplicity and cost-effectiveness.

Composting Toilet Options

Composting toilets offer a sustainable alternative, particularly for those who prefer an off-grid lifestyle. These toilets transform waste into compost that can be used in gardens, making them an excellent choice for eco-conscious individuals. However, composting toilets are not ideal for everyone. They require significant maintenance, which can be a deterrent, especially for families.

For those interested in composting toilets, the book 'The Humanure Handbook' by Joseph Jenkins is a valuable resource. This comprehensive guide provides detailed information on how to set up and maintain a composting toilet system. Although the implementation may involve some initial effort, the benefits of having a self-sustaining toilet system can be immense.

Alternative Toilet Designs

For a family with specific needs, such as the author's family with three members, alternative designs can be more convenient. The article describes how they designed a urine-separating composting toilet setup, including an open pit with a urine diverter and a urine-diverting wooden seat. This system was complemented by a bucket of sawdust for each use, which helped to cover and decompose the waste.

Recognizing the need for a single shared facility, they also built a family-friendly urinal. This involved designing a wooden bowl shape with a urine-diverting feature. The project not only improved the functionality of the outhouse but also engaged the family, creating a collaborative atmosphere.

A bonus feature they added was a slanted roof to the outhouse, which directed rainwater into a water butt made from an old oil drum. This water butt provided fresh rainwater for hand washing, further enhancing the sustainability and convenience of the setup.

Conclusion

In conclusion, there are several options available for toilets in tiny houses, from traditional septic field and tank systems to composting toilets and alternative designs. The choice ultimately depends on personal preferences, cost considerations, and environmental factors. By carefully evaluating the available options and considering the needs of the family, a suitable and sustainable toilet solution can be found for any tiny house.