As night falls, a seaside is on the east side of Shiraki Island.

Several tired soldiers walked out of the woods and sat on the ground.

"worn out……"

Diao Ke threw his backpack on the ground and lay directly on the sand.

He took out the kettle, unscrew the lid, and Niu Shilin next to him came up and kicked Diao Ke's foot.

"How much water do you have?"

Diao Ke shook the kettle and said to his squad leader: "Half still."

"You're drinking a little too much," Niu Shilin said: "Freshwater consumes too fast."

Diao Ke put his household registration to his mouth with some embarrassment, took a sip, and then said, "Squad leader, it's already very affordable. Today, you see that we've walked almost forty kilometers, right? And it's so hot, it's good to drink half of the water."

He would look back at his Xinjiang comrade Kusi Dalbuk behind him and smiled, "Xiao Ku probably drank all the water."

Niu Shilin was stunned for a moment, reached out and grabbed Kuxi's kettle, shaking it, and a bang.

"Did I tell you along the way to save as much as possible? I can't stand it and drink it to moisten my throat!"

Kusi said with a bitter face: "Squad leader, I love to sweat very much. If I don't drink water, I will get dried up and become a human being."

Niu Shilin sighed and threw the kettle back to Kuxi.

Deputy squad leader Lin Sheng approached Niu Shilin and asked, "We only found 5 points today, and the progress is a bit slow."

"Yes." Niu Shilin took out the map and compared the target point above. The spot that had been found was circled with a blue pencil.

There are only 5 blue circles on the map.

This means that in the next four days, the remaining 30 points must be found.

"This time our deputy company commander has asked us a problem." Niu Shilin said: "The water source is not given, and the target points are almost twice as many as before, and the target objects are becoming increasingly difficult to find."

Lin Sheng also agreed with the words of the class leader Niu Shilin.

The reason why I only found 5 targets this afternoon was because the target items were too tricky to hide.

One of the old 56 bullet belts was actually hung on a tree, more than four meters high from the ground.

The elastic belt is green. The people from Class 1 arrived at the target site and checked the coordinates and terrain, but they could not find the target item.

I had been searching for this bullet belt just for an hour, and finally Diao Ke was lying on the ground and resting.

Although similar training has been carried out in the past, the items in the past are generally very obvious and never hang on the treetops. Most of them are either placed on stones and pressed directly on the trunk, which can be seen at a glance.

However, it is not my turn to be dissatisfied with the training standards. I am a soldier and can only obey orders.

No matter how difficult or troublesome it is, you have to complete the task without fail.

What's more, this kind of reconnaissance and search training, Deputy Company Commander Zhuang said that it is very good at training people, and there may be such projects in future competitions.

"Squad leader, I'll take a few people to the beach to find something to eat." Lin Sheng couldn't help, it's dark now, so I'm going to find something to eat.

Each person has only five compressed biscuits.

In other words, the daily supply volume in the future will only be one compressed biscuit.

The rest depends on people like me to use local materials.

Fortunately, the reconnaissance battalion is stationed by the beach all year round, and the field survival training is not overnight.

There is so much food to eat by the beach.

"Okay, you can take a few people to find food, mine will get some water."

When Lin Sheng took a few soldiers to the beach, Niu Shilin greeted Diao Ke and Kuxi: "Bring a shovel and rain cloth, follow me."

Someone turned around and said to the other soldiers: "You guys, set up tents and pick up firewood, let's deal with each other all night tonight."

He led Diao Ke and Kuxi to find a flat ground. Niu Shilin squatted down with the engineer shovel and dug a shovel on the ground.

The sand was easily dug out.

"good."

He nodded to himself.

Diao Ke said: "Squad leader, what method are you planning to use to get water?"

Niu Shilin said: "I think this place is quite open. We will set up a few distillation pits later, and we will have water to drink when we wake up the next morning."

In fact, the distillation pit mentioned in Niu Shilin is a method of obtaining fresh water through filtration and distillation.

The method of distillation pit is very simple.

Find a place to dig a pit with a diameter of about 1 meter and a depth of about 0.5 meters, and then dig a trench about 10-15 cm wide and 20 cm deep along the outer edge of the entire round pit to prevent a container of water at the bottom of the pit - you can use a helmet if you have a helmet, and you can use a military washbasin without a helmet, or find a bamboo, cut a section and dig a hole as a container.

After putting the container, cover the rain cloth on the top of the pit, press the surroundings with sand and stones, and seal them up.

Then put a stone in the middle of the rain cloth to collapse in the middle of the rain cloth, in the shape of a funnel.

The purpose of this is that when the water rising from the distillation from the pit is blocked when it is condensed on the rain cloth, it will slowly concentrate along the rain cloth at the lowest point - that is, the center of the funnel. When the water condenses to a certain level, it will drip down and drip on the water container at the bottom of the pit.

Of course, there are many ways to use distillation pits, but it is not just digging the pit and there will be water. If you are in the jungle area, you can put leaves and plants into the pit, or even mash them to let the water spread.

And when you are at the beach, it is easier to get water.

This kind of pit also has a useful purpose. Pour seawater or some sewage into the ditch at the edge of the pit. This seawater and sewage will slowly seep into the soil and then seep into the pit.

When the soil in the pit reaches a certain humidity, water vapor is easily generated during high temperatures in summer, and it will also be collected by rain cloth and dripped into the container at the bottom of the pit.

More importantly, this type of distillation pit can filter sewage impurities and desalinate seawater. After the filtration and distillation of sand, the obtained water can be directly drunk.

Generally speaking, this is a water withdrawal mode commonly used by special forces or reconnaissance units in the field. It is even applicable in harsh environments such as deserts, Gobi Deserts, and salt lakes. However, in deserts, condensation method is used instead of this filtering and distillation method.

When the squad survives behind enemy lines, if fresh water is lacking, you can use this distillation pit and dig it when you are resting at night. Then, at least 200 ml of fresh water can be collected within 8-10 hours, and at the highest point, you can even collect nearly 1 liter of fresh water.

These fresh waters are enough for a soldier to use in a day.

If you save some drinks, it will be enough for both of you.

It is near the sea and is easy to obtain. As long as you pour more water into the ditches next to the pit to make the humidity of the distillation pit sufficient, the more fresh water will be collected.

I have 10 people in my class and ten rain cloths, but I have to use rain cloths at night, so I can only take out five to collect fresh water.

By the morning of tomorrow, it is estimated that fresh water will collect about 2,000-10,000 ml, and looking for some other wild fruits to provide moisture, it is estimated that it will survive a day.

Just as the soldiers of the 1st Company were camping at their rest points and began to find food to fill their stomachs, Zhuang Yan, in the battalion of the coastal defense company on the island, Zhao Huanbin, and several platoon leaders were sitting under the big tree in the camp.

"It seems like the time is almost done."
Chapter completed!