Quick Answer
In a survival situation, a raised platform is generally better than digging a pit due to its ability to collect and conserve rainwater, facilitating the use of a solar still.
Advantages of a Raised Platform
A raised platform can collect rainwater more efficiently than a pit, especially in areas with low rainfall. A platform with a slope of 10-15 degrees can allow water to flow towards a central collection point, increasing the chances of collecting enough water for a solar still. This design also reduces the risk of water contamination from surrounding soil and debris.
Designing an Effective Raised Platform
To create a functional raised platform, start by selecting a location with a slight incline to ensure water flows towards the center. Then, use materials such as branches, logs, or rocks to construct a raised platform with a slope of 10-15 degrees. The platform should be at least 3-4 feet in diameter to accommodate a solar still and allow for easy collection of rainwater. Make sure the platform is sturdy and can support the weight of materials and people.
Utilizing a Solar Still
Once the raised platform is in place, set up a solar still by digging a small hole in the center and placing a container or a makeshift collection vessel. Add a layer of sand, charcoal, or small rocks to the hole, followed by a cloth or plastic sheet. Place the container in the center, and weigh down the edges with rocks. As the sun heats the platform, water will evaporate and condense on the underside of the cloth, dripping into the container. This method can provide a reliable source of clean drinking water in a survival situation.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.