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I call it the Ventilation Improved Triple Pit (VITP).
Two poop pits of the same depth and width as close as possible with a third low pit that becomes a downhill trench. The third pit is for urine the principle is a downhill dug trench with gravel at the bottom and dirt on top until it reaches back to the opening of the pit which is exposed gravel. You pee on the gravel it travels downhill through the gravel and you may plant things on top of the dirt which will drink the urine.
This separation of urine from poop means the poop can compost and remain as dry as possible giving it the highest volume reduction possible and lowest smell. One poop pit is used for a year and then it is allowed to rest and users switch to the other pit. For every 1/4th the pit is filled you must throw in a shovel of worm rich topsoil. The poop pit being used will each week have dry crushed leaves and wood ash of aboht the same quantity tossed in. High carbon, low moisture and the final piece of the puzzle is aeration. A pipe must be installed from the two poop pits out above the roof or sitting area, and it must have a mesh or fly stop on it. This airflow allows the highest level of composting. I advise connecting the two poop pits together via this air pipe with a three piece pipe connector and only one air pipe coming out.
In your local environment you should have mint or peppermint plants. These usually contain menthol which is an insect deterrent. Do not throw directly in the pit, plant them around the toilet and crush leaves up, or create an decoction and spread around the area weekly.
If this is done correctly not only will it not stink but you can realistically with a permanent group never have to get in and shovel raw shit.
Two poop pits of the same depth and width as close as possible with a third low pit that becomes a downhill trench. The third pit is for urine the principle is a downhill dug trench with gravel at the bottom and dirt on top until it reaches back to the opening of the pit which is exposed gravel. You pee on the gravel it travels downhill through the gravel and you may plant things on top of the dirt which will drink the urine.
This separation of urine from poop means the poop can compost and remain as dry as possible giving it the highest volume reduction possible and lowest smell. One poop pit is used for a year and then it is allowed to rest and users switch to the other pit. For every 1/4th the pit is filled you must throw in a shovel of worm rich topsoil. The poop pit being used will each week have dry crushed leaves and wood ash of aboht the same quantity tossed in. High carbon, low moisture and the final piece of the puzzle is aeration. A pipe must be installed from the two poop pits out above the roof or sitting area, and it must have a mesh or fly stop on it. This airflow allows the highest level of composting. I advise connecting the two poop pits together via this air pipe with a three piece pipe connector and only one air pipe coming out.
In your local environment you should have mint or peppermint plants. These usually contain menthol which is an insect deterrent. Do not throw directly in the pit, plant them around the toilet and crush leaves up, or create an decoction and spread around the area weekly.
If this is done correctly not only will it not stink but you can realistically with a permanent group never have to get in and shovel raw shit.
