The odor from the composter will not normally be noticed on the ground outdoors if the exhaust pipe terminates at least 12 in. (305 mm) above the peak of the roof. If the exhaust pipe is lower than the roof peak, odors from the exhaust pipe might be swept to the ground through wind downdrafting…. Continue Reading

Some assume that the wider the connecting pipe from the toilet to the composter, the less chance of streaks going down it. That’s probably true; however, this connecting pipe can act as a chimney through which odors can back up into the toilet room. In fact, the larger the diameter of the connecting pipe and… Continue Reading

Ensuring that air enters (ventilation) and exits (exhaust) the composting toilet system in the right direction is critical for maintaining the composting toilet system and preventing odors from entering the home. If your toilet room is on the side of the house opposite the prevailing winds, wind pressure on the windward size of the house… Continue Reading