BioLet Compost Mix comes in an 8 gallon bag. The mix needs to be added to the unit, 1/2 cup after each fecal use or 1 quart per person per week. One bag will last about 1 season on average.
Wind Directional Cap
The wind directional cap minimizes the possibility of back draft and stops rain and snow from entering your BioLet without hidng the air flow. The sloped cap nad steering fin keeps the opening downwind while increasing the air flow through your composting toilet.
12V DC Auxiliary Fan
BioLet offers a 12V DC / .25 Amp fan to increase the air flow through the BTS 33. This increases the composting toilet's efficiency and allows it to handle a larger capacity of 4 people full time and 6 people part time.
6 Watt Solar Panel
Some people prefer to operate their 12V DC Auxiliary Fan with solar energy. The solar panels are a 6 watt panel, providing just the right amount of power to operate the Auxiliary Fan.