In the afternoon, except for Zhang Xiangyang and Zhang Bin, who made water purifiers, the rest of the people began to tidy up.

Some people organize the supplies to a place where they can easily access them, while at the same time making it difficult for rats and insects to invade, and dispose of five jackals by the way.

Others just remove the nearby vines and plants, which cling to the mountains and attract insects, which in turn attract some trouble.

Rats have a strong ability to climb, and Zhang Han's plan is to process the edge of the top of the long pillar, so that when the rat puts its paws on it, it will fall because there is no focus point.

Zhang Bin instructed Zhang Xiangyang to make a water purifier and taught Zhang Xiangyang how to use the principle of sedimentation and filtration to create a primitive water purifier that can purify water quality.

Zhang Xiangyang was burning the fire with wood, bones, and gravel next to him, and when he saw Zhang Bin inlaying long bamboo strips into the four sides of the well wall, he said, "Is this for beauty?" ”

Zhang Bin is using long bamboos to protect the surrounding walls, and after hearing this, he explained: "In addition to the beauty, it can also make the well water cleaner and more stable, if there is a circle of wood around the well to protect it, you don't have to worry about falling into it when you draw water, and there will be no animals accidentally falling into it and drowning, polluting the water source." ”

"Well, that's good." Zhang Xiangyang felt that this was necessary, and while burning activated carbon, he said: "The stones in this well have limestone, and there are many minerals nearby, so it seems to be a really good place." ”

Zhang Bin didn't see it that way, and said: "It's not the best, it's not the worst, it's just average, we don't look like one of those teams worth looking forward to, being arranged in this kind of place, it's enough to say something." ”

Their squad's number is W92, and that number says too much.

Zhang Xiangyang sighed and said: "Take your time, I really hope that those who are stronger than us can play a role, I really don't want to continue this life of survival in the wild." ”

It didn't take long for Fan Bin, who was busy with his own area, to come over and help Zhang Xiangyang make a water purifier together.

Slowly, Zhang Han and Lu Shiqin also came over to help, and after there were many people, it took more than an hour to complete the two filters.

At this time, the water seeping out of the bottom of the pit has gathered together and formed a large scale.

Zhang Bin made a buckle rope and a water cylinder for taking water, and inserted a stick that could be tied to a rope in the open space next to the well, and only needed to put the buckled hemp rope on it to fix the water pipe.

Pour the dirty water from the water cylinder into the highest water purifier.

The size of the two water purifiers is different, but the number of layers and structure are the same, the lowest layer is activated carbon, and then placed river sand, gravel, yellow sand, bamboo fiber, and large gravel.

After going down layer by layer, the water begins to be continuously filtered and eventually flows down...... Or sewage.

Zhang Xiangyang looked at the muddy water that flowed out of a thumb-sized bamboo tube at the end, and said speechlessly: "Did you fail?" ”

Zhang Bin explained: "No, you can filter it again, the role of the water purifier is only to filter, if it is not necessary, it is safer to boil water to drink." ”

Ling Ling directly snatched the bamboo tube in Zhang Xiangyang's hand and poured it into the sink of the water purifier on the side, "How can it be so fast, you think it's a water dispenser!" ”

Soon, the water that came out of the stream became extremely clear, just like the clear water you see by the stream!

Lingling didn't believe Zhang Xiangyang, and advised: "Don't drink it directly!" This water is mainly used for washing clothes and bathing, and if you drink water, you must boil it before drinking! Otherwise, I won't serve you! ”

Zhang Xiangyang actually really wanted to taste it, and now the water he received was very clear, but after hearing Lingling's words, he said embarrassedly: "I know, I didn't want to drink it." ”

Ling Ling snorted dissatisfied, "Hmph! It's really not worry-free, don't drink raw water, but it's something that even kindergarten children know! ”

The rest of the people were amused to see it, and after covering the well with a lid, several of them returned to the mountain with the water they had received.

At this time, it is already a night when the moon is sparse, and the temperature around it drops

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