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Composting Toilet Reviews

Click on one of the four categories below to read through composting toilet reviews from real people just like yourself. We've got composting toilet reviews from around the United States, Canada, and other parts of the world. Many of the reviews also include photos of the customers' composting toilets after installation.

View Self-Contained Reviews
Here you'll find customer reviews for our self-contained composting toilets:
View Central System Reviews
Here you'll find customer reviews for our Centrex central system composting toilets:
View Commercial Use Reviews
Thinking about installing a Sun-Mar system in your place of business?  Find out what other business owners have to say about their composting toilets installed in their hotels, resorts, etc.
View Outhouse-Retrofit Reviews
Many Sun-Mar owners have retrofitted their old outhouses and outbuildings with composting toilets.  Read about their experiences, and see some photos of their installations here.