Hi. Primitive technology with survival skills builds a water filter tank part 3 is our next video. In this video we finished building a water filter tank. By the primitive technology we have filtered clean water from the tank, initially we make charcoal then go to streams for sand and stones. Charcoal can eliminate toxins and bacteria, rocks and sand that cleanse water. We let the charcoal make the first layer followed by stone and sand, large stones at the top. It takes 1 hour for water to be purified. We will continue to make the next video on primitive technology and wild survival skills. Subscribe to the channel to watch the latest videos. Thank you.