Keep your composting toilet running at its peak efficiency with the BioLet Compost Starter Mix . A specialized compost mix of peat and other natural organic materials provides the optimum balance for efficient composting. One 8 gallon bag will last two people using the toilet full time for about three to four months. About BioLet Toilet Systems BioLet Toilet Systems is striving to increase awareness about the need for people to convert to more sustainable waste manageable and water conservation. Their toilets are designed to use nature's composting process to reduce and change human waste rather than using water to flush it away. Manufactured in Sweden, BioLet toilets have 35 years of Swedish engineering behind them, as well as environmental certifications from various agencies. BioLet's main distribution center is located in Fresno, OH. Compost mix of peat and natural organic materials Keeps your composting toilet at peak efficiency Provides the optimum balance for efficient composting 1 bag lasts 2 people 3-4 months