What Is a Vault Toilet?

Author: Staff Writer
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A vault toilet is a toilet bowl used over a sealed tank in the ground. A bathroom building is placed over it.  Because it is low-tech, a vault toilet is often used in parks and other rustic or simple settings.

No Water

Unlike a traditional toilet, it does not use water for flushing. Instead, it uses gravity to let wastes drop into the tank.


The typical vault toilet can store 500 to 1,000 pounds of urine and fecal waste.


When the tank is full, the vault toilet must be pumped out. The waste must then be taken to a government-approved waste treatment facility.


A vault toilet is prone to odor problems. Several products and systems are on the market to decrease this by either adding a fragrance or altering the bacteria activity to aid in the decomposition of the waste. Today's vault toilets are designed with proper ventilation, outdoor access to the pump-out process and other features that make them more user-friendly than older models.


Works Cited

The United States Department of Agriculture Forest Servicve
"Do Biological or Chemical Additives Really Control Vault Toilet Odors?."

US Department of Agriculture Forest Service
"In-Depth Design and Maintenance Manual for Vault Toilets"

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"What Is a Vault Toilet?." Sophisticated Edge. N.p., n.d. Web. . <http://www.sophisticatededge.com/what-is-a-vault-toilet.html>.  

The information on this Web site is designed for educational purposes only. It is not intended to be a substitute for informed medical advice or care. You should not use this information to treat or diagnose any health problems or illnesses without consulting a physician. It is not meant to take the place of health care or services you may need. Please consult a physician with any questions you may have regarding your health.

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