Shelter Sanitation

Holding tanks and septic tanks are acceptable in areas of low or no blast and areas. The tanks, however, are extremely vulnerable to ground slap from blast, and may crack or rupture during earthquakes. Flying debris from high winds during tornadoes, hurricanes or blast could break the lids of septic tanks, and if they are at or near the surface, or sit over the shelter, the contents of these tanks could be forced back into the shelter.

Flush toilets and showers are very convenient. If the bunker has a well or is near a source of unlimited water, you may wish to consider this option.





In areas of high risk for blast, we prefer (and install) chemical toilets, as these toilets are care free, simple to use, and easy to empty and clean.

Please be advised:
  • Flush toilets require large amounts of water. Water is at a premium.
  • Holding tanks may be difficult to empty after a full scale emergency.
  • Septic tanks are vulnerable to blast and earth movement.
In order to increase waste capacity, use separate toilets for solid waste and urine. Cover solid waste with a disinfectant solution or kitty litter. Solid waste should be stored in barrels in double plastic bags, until it is safe to remove and bury it outside. Urine can be poured into the gray-water drain.

In the event of a nuclear or biological attack, you may not be able to return to your home to live. Bacterial agents may enter your above ground home through broken windows and the furnace ducting system. Sunlight will destroy bacteria that are on the ground, but it cannot reach inside your ducting system to destroy these agents. If your home is damaged or destroyed and you are forced to continue to live in your shelter, construct an old-fashioned 'outhouse' downhill from your shelter.

Look carefully at the risk assessment section. Please feel free to call us with questions (Sharon at 801-380-2932 or Paul at 801-631-7684). We would be happy to evaluate your location and help you with your design options.
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