Composting toilets use aerobic decomposition to break down human waste instead of flushing it away in the water. While they reduce water usage, some users find odor management challenging. In this blog, we’ll discuss all the major advantages and disadvantages of composting toilets.
Advantages and Disadvantages of Composting Toilets
Composting toilets break down human waste and transform it into compost or nutrient-rich material. There is a urine separator that keeps liquids and solids separate to prevent odors. After each use, carbon-rich material like sawdust is added to absorb moisture and prevent smells. The waste is eventually emptied, decomposed, recycled into compost, and used to improve soil fertility, reducing the requirements of chemical fertilizers and water.
It does not require water thus is perfect for treehouses, barns, or other outbuildings. Despite serving dual purpose and being advantageous to both humans and environment, composting toilets have some drawbacks too.
Advantages | Disadvantages |
Cost-effective, swift, and minimal requirements. | Local restrictions & permit requirements. |
Minimal impact | May not save space due to size & Odor control challenges |
Promotes plant growth and reduces water consumption. | Potential challenges for taller individuals or those with mobility issues. |
Space-efficient, adaptable, and versatile installation options. | Single-unit systems face compost consistency issues. |
Requires minimal upkeep; some periodic compost turning. | Increased maintenance costs; potential rise in expenses for licensed septic transportation companies. |
Many offer lifetime warranties | End product disposal may require professional services |
Efficient waste recycling, beneficial for high-septic-demand homes. | Potential social conversations and reservations due to unfamiliarity. |
Disadvantages of Composting Toilets
These are the other major cons of composting toilets.
1. Odor Control Challenges
In comparison to traditional toilets, composting toilets generally have a more noticeable odor. Not every composting toilet effectively manages odors, especially in centralized systems. A compartmentalized setup is often recommended, and specific products can be used to reduce smells.
2. Potential Difficulty in Use
While most composting toilets have a user-friendly height, individuals with mobility challenges may find them less accommodating. It can be challenging to find models taller than 17 inches, posing difficulties for those who require a higher toilet. Taller individuals (above 6’3”) may also encounter usability issues.
3. Limited Space Savings
Despite being associated with smaller homes, composting toilets have additional waste management components that takes up more space. These components and the larger size of most models can pose challenges for installation in homes with limited space.
Also See: Eco Toilet System Guide: Working, Types, Features, Price
4. Social Conversations/Taboo
Owning a composting toilet may invite questions, discussions and situations, often centered on safety, unfamiliarity, or perceived differences. Some guests might be hesitant to use it, commenting on the unique experience or mentioning any associated smells. This is another limitation to it while most people adapt, a few may express reservations about the choice.
5. Maintenance Challenges for Single Units
They face challenges in maintaining an even compost consistency due to a mix of wet and dry waste. This inconsistency can make it hard to distribute compost, which may lead homeowners to need septic hauling services for waste management.
6. Possible Permit Requirements
It is important to check with local authorities and code enforcement agencies before purchasing to ensure compliance with specific codes and regulations. While composting toilets generally aligns with international building codes, local restrictions may hinder installation in some areas. This sums up all major composting toilet problems.
Cross Reference: Composting Toilets Pros and Cons
Advantages of Composting Toilets
After learning how to use a composting toilet, let’s explore its numerous benefits. Here are all the other major advantages.
1. Cost-Effective Installation
Traditional septic installations can cost over $5,000, while composting toilets are priced under $1,000, with simplified installation requirements. Installing a composting toilet is both cost-effective and swift compared to traditional systems.
2. Minimal Property Impact
They save around 4,000 to 7,000 gallons of water per person annually, offering an environmentally friendly alternative to traditional toilets that flush 20 gallons daily. Composting toilets have minimal impact on the property, promoting plant growth and reducing water consumption.
3. Space-Efficient Design
Composting toilets are space-efficient and adaptable, suitable for off-grid or locations where a well connection isn’t possible. Their versatile installation options, including outdoor placement, address sizing and spacing concerns effectively.
4. Low Maintenance
Composting toilets require minimal maintenance; human waste maintains proper moisture levels, and periodic compost turning is usually the only upkeep required. Choose models meeting or exceeding ANSI standards for optimal long-term performance.
5. Lifetime Warranties
Many composting toilet manufacturers offer lifetime warranties. Coupled with substantial water savings, these toilets prove cost-effective over time, paying for themselves quickly.
6. Efficient Waste Recycling
Composting toilets alleviates the burden on existing plumbing systems, particularly beneficial for homes with high septic demands or low water pressure. Waste recycling becomes more efficient, redistributing resources without overwhelming current infrastructure.
When looking at the pros and cons of composting toilets, we see both sides. Composting toilets are good because they’re affordable to install, don’t impact the property much, and recycle waste well. However, they would require regular maintenance and odor treatment. The decision to use these toilets depends on your needs, local rules, and your preference for water conservation.
Recommended: Most Water-Efficient and Sustainable Toilets.