STARTER MULCH Features: -Specialized compost mix of peat and other natural organic materials.-Scientifically proven formula provides optimum balance for effective composting.-One bag of mix will last 2 people using a biolet full time for about 3-4 months.-1/2 Cup of mix needs to be added to unit after each fecal use or 1 quart per person per week.-Capacity: 8 Gallon. Dimensions: -Weight: 12 lbs.