As a Native American symbol, the Horse symbol meanings combine the grounded power of the earth with the whispers of wisdom found in the spirit winds. The Horse has long been honored has helper, messenger, and harbinger of spirit knowledge.
Average requirement for a healthy adult will be about 2-3 liters, depending generally on body mass and activity level. This translates to about 10-13 eight ounce glasses, slightly more than the 8x8 rule (8 eight ounce glasses) that is usually spoken of. If this seems like a lot of water, it is.
This water needs to be of a quality that represents a tolerable level of risk. However, in an emergency situation, a minimum of 15 litres is required. A higher quantity of about 20 litres per capita per day should be assured to take care of basic hygiene needs and basic food hygiene. Laundry/bathing might require higher amounts unless carried out at source.