2 relations: Effective microorganism, Pit latrine.
Effective microorganism
Effective microorganisms (EM) are various blends of common predominantly anaerobic microorganisms in a carbohydrate-rich liquid carrier substrate (molasses nutrient solution) of EM Research Organization, Inc.,Effective Microorganisms EM and EM・1 are the trademarks of Em Research Organization, Inc., Uruma City, Okinawa, Japan.
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Pit latrine
A pit latrine or pit toilet is a type of toilet that collects human feces in a hole in the ground.
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Pit additives, Septic tank additive, Septic tank additives.