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.
Nice!
The concept is interesting, but where would you place the piss slide? It's kinda hard to just shit without pissing a little too.Would you have people do their number ones before their number twos to minimize the amount of piss in the shit?I used a pre-made seat for an outhouse that had a convenient piss hole, so you could piss in that while you were shitting, and the piss was led out through a tube, and that seemed to work pretty well. Or, at least it didn't smell as foul as some other outhouses so.
>>2853749Interesting. If they can piss first that would work. The urine getting in there is what makes the whole thing stink terribly we must avoid doing that. I like the pipe idea. If you had flexibility pipe you could bury one end at the level of the gravel that way you only have one end and it is easy to work with. Put a clip on it and hang it up when not used. The other option is a small maybe just couple inch deep trench in front of the poop pits filled with gravel that connects back to the pain trench.
>>2853519Good design I think
