Unlike traditional toilets, composting toilets are self-contained units that break down and dehydrate human waste to form compost which is usually added to the soil.
These types of toilets consist of a sitting platform just like normal toilets and additional chambers; one for breaking down and sanitizing waster and a drying chamber that lets moisture escape to reduce the volume of sewage.
Composting toilets are used in a similar way as modern toilets and modern models look as familiar as normal toilets although they use little to no water at all.
The waste gets mixed with starter mulch which helps in the composting process.
We have reviewed 6 of the best composting toilets that have some excellent features and performance to help you narrow down the options much quickly.
This toilet offers one of the best choices when you are looking for a comfortable, portable and self-contained composting for use anywhere whether on land, sea or air.
It is user-friendly and has some excellent features such as the air circulating fan that not only eliminates foul odors but also aids in the composting process.
This composting toilet is designed to deliver comfort and excellent performance wherever you need without needing to plump or have an electrical installation.
Its lightweight design coupled with some superb performance features makes it an excellent choice for activities such as camping, boating or hunting as it lessens your carry weight.
One of the attractive features about this self-contained composting toilet is its compact yet elegant design that makes it ideal for use with RVs, trucks, boats among other uses efficiently and without occupying much space.
It is pretty comfortable to use and has some cool features such an ergonomic handle, a leak-proof design it is odorless.
Additionally, the battery-powered flush is quite useful which combined with a hold-down kit for increased stability while on the road makes this composting toilet a worthy consideration.
With this self-contained composting toilet, you don't need electricity or any plumping to compost human waste safely.
It has a lightweight, portable design with a low profile that makes it comfortable for everybody. Moreover, this composting toilet features a venting kit which not only aids the composting process but also makes sure that this toilet remains odorless.
This composting toilet is ideal for people looking to have an extra bathroom but with limited space for a conventional bathroom. It uses water and electricity but it is highly efficient and eco-friendly.
Moreover, this toilet remains odorless which is very attractive if you are going to use it indoors. Furthermore, you can conveniently use this composting toilet to discharge waste water from your sink as it allows for a secure connection to your sink's plumbing.
This is another excellent choice if you are looking for a composting toilet with advanced features and functionality.
The adaptors for both AC and battery use make it a versatile choice for residential and off-grid use.
Additionally, this composting toilet has some cool features such as urine diverting which allows for faster dehydration of waste as well as a single speed fan that provides for excellent venting to make the bathroom odor free and also aid in the composting process.
We hope the guide below will be of use if you are considering buying a composting toilet
Composting toilets are normally used where water supply is erratic or limited and sometimes where one wishes to conserve water use.
They, therefore, form an ideal solution for handling human waste where wastewater treatment is hard or impossible to accomplish and are eco-friendly.
When choosing a composting toilet model, you need to carefully consider the usage level of the toilet as different models are designed to handle different usages.
You can, therefore, choose a model designed for full-time use or one designed for part-time use as their composting methods are entirely different.
Electric composting toilet models usually come with a heater that aids the composting process and possibly an air mixing system, a power ventilation system and a sewage mixing mechanism that hastens the composting process. Non-electric models lack the heater and power mixing systems but may feature venting.
There is a wide variety of composting models with their water use classified as either waterless, foam flush or low water.
Water models will require to be connected to a water source to function efficiently.
There are different types of composting toilets ranging from fully automatic, semi-automatic to manual composting systems.
A fully automatic composting model controls the heater, the ventilating fan, and the mix and typically mixes every time the seat is lowered.
The semi-automatic models use a thermostatically controlled heater and fan. However, sewage-compost-mulch mixing is manual.
Smaller composting models especially those that do not use aerators and heaters require more care and maintenance because they risk accumulation of liquids, insects and the nitrification of waste. Units that use an aerator fan and heater have low risk, however.
All compositing toilets feature a specialized of closing the bottom bowl from the waste-line for sanitation and odor control purposes.
Some will feature an automatic trap closing mechanism which is attractive to people who are unfamiliar to the controls of the toilet.
Other models use a manual valve that closes the bottom of the bowl. This the most common type of bowl closure designed by most manufacturers of composting toilets.
The composting of water usually involves processing of warms, processing of micro-organisms such as bacteria and mold and the dehydration of the waste by allowing moisture to escape.
There are two significant waste methods processing; batch and continuous.
The interior of these toilets features multiple compartments. Once a compartment is filled with waste, it gets sealed and taken out of use so that the sewage breakdown can continue.
After the composting process is over, the compartment is emptied and mixed with soil in a prescribed legal manner before the compartment is returned to use again.
These models receive waste continuously into a single compartment. The composting process usually reduces the waste volume as it dehydrates the waste and allows moisture to escape.
The waste is then removed from the bottom of the compartment typically every 6-12 months and is considered to be fully composted before it is applied to soil in a legally prescribed way.
There is a different requirement for installing a composting toilet depending on the model and manufacturer specification. Some models require to be installed over a composting reservoir while others use a huge reservoir which may be below under the toilet and there are other self-contained units although they are much smaller.
The installation requirements, therefore, have a huge impact on the choice of model for a composting toilet as the available space will dictate the type of composting tank your composting toilet can be installed with.
What is important to remember when planning the space for the composting reservoir that is separate from the composting toilet itself is the access to the reservoir. It needs to be easy, comfortable and safe as regular access is necessary for emptying, cleaning and doing regular maintenance chores.