As night fell, a seashore on the east side of Shiratori Island.

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

"Worn out……"

Diao Ke threw the rucksack on the ground, and the person lay directly on the sand.

He took out the kettle, unscrewed 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 monitor, "There's still half of it."

"You're drinking a little too much." Niu Shilin said, "The fresh water is consumed too fast."

Diao Ke put his household registration to his lips with some embarrassment, took a sip, and said, "Squad leader, it's already very economical, you see we have traveled almost 40 kilometers today, right? And it's so hot, we just drank it. Half the water is fine."

He would turn his head and glance at his Xinjiang comrade-in-arms Kusi Darbek behind him, and said with a smile, "Little Ku probably drank all the water."

Niu Shilin was stunned for a moment, then reached out and grabbed Cuxi's kettle, shook it, and banged.

"Have I confessed that I can save as much as possible along the way? I can't stand it until I drink some to moisten my throat!"

Cousy said with a bitter face: "Squad leader, I like to sweat very much. If I don't drink water, I will be dried by Chéng Rén."

Niu Shilin sighed and threw the kettle back to Kuxi.

Deputy squad leader Lin Sheng approached Niu Shilin and asked, "It seems that we have only found 5 points today, and the progress is a little slow."

"Yes." Niu Shilin took out the map and checked the target points on it. The points that have been found are circled by him with a blue pencil.

There are only 5 blue circles on the map.

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

"This time, our deputy company commander is giving us a problem." Niu Shilin said: "The water source is no longer available, and the target points are almost doubled compared to before, and the target objects are becoming more and more difficult to find."

Lin Sheng also agreed with the squad leader Niu Shilin.

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

One of the old-fashioned 56 bullet belts was actually hanging on a tree, more than four meters above the ground.

The belt is green. When the 1st class arrived at the target, they checked the coordinates and the terrain and everything was correct, but they couldn't find the target item.

It took a full hour just to find the bullet belt there, and finally a Diao Ke accidentally saw it while lying on the ground to rest.

Although similar training has been conducted in the past, the placement of items in the past is generally very obvious, and they are never hung on the treetops. Most of them are either placed on rocks and pressed, or directly nailed to the tree trunk, which can be seen at a glance.

However, it was not his turn to be dissatisfied with the training standards. He was a soldier and could only obey orders.

No matter how difficult or troublesome it is, the task must be completed without compromise.

What's more, this kind of reconnaissance and search training, Deputy Company Commander Zhuang said that it can train people very well, and there may be items in this area in the future competitions.

"Monitor, I'll take a few people to the beach to find something to eat." Lin Sheng couldn't help much. It was getting dark now, so he was looking for something to eat.

Only five compressed biscuits per person.

In other words, the daily supply in the future is only one compressed cookie.

For the rest, it's up to these people to source materials locally.

But fortunately, the reconnaissance battalion is stationed by the sea all the year round, and the field survival training is not overnight.

There are so many things to eat by the sea.

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

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

Some turned around and said to the other soldiers, "You guys, set up a tent and pick up firewood, we'll deal with it here tonight."

Leading Diao Ke and Kuxi to find a flat, Niu Shilin squatted down with a shovel and dug a shovel on the ground.

Sand is easily dug up.

"Okay."

He nodded to himself.

Diao Ke said, "Monitor, what method are you planning to use to get water?"

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

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

The practice of distillation pits 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 circular pit about 20 cm. The bottom of the box is to prevent a container for water - a helmet can be used with a helmet, a military washbasin can be used without a helmet, or you can find a bamboo, cut a section, and dig a hole on it as a container.

After the container is placed, cover the top of the pit with a rain cloth, press it with sand and stones around it, and seal it well.

Then put a stone in the center of the rain cloth, so that the middle of the rain cloth collapses in a funnel shape.

The purpose of this is that the water distilled from the pit is blocked by the rain cloth, and after condensing on the rain cloth, it will slowly concentrate on the lowest part along the rain cloth—that is, the center of the funnel. When the water condenses to a certain extent, it will Drip down, onto the water container at the bottom of the pit.

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

At the seaside, getting water is even easier.

This kind of pit is also useful. Pour seawater or some sewage into the ditch beside the pit. These seawater and sewage will slowly seep into the soil and then into the pit.

When the soil in the pit reaches a certain humidity, it is easy to generate water vapor to rise up during the high temperature in summer, which will also be collected by the rain cloth and then drip into the container at the bottom of the pit.

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

Under normal circumstances, this is a water intake mode commonly used by special forces or reconnaissance troops in the field, and even in harsh environments such as deserts, Gobi Desert, and salt lakes, but in the desert, the condensation method is used instead of this Just filter distillation.

When the squad survives behind enemy lines, if there is a lack of fresh water, this kind of distillation pit can be used, dug it when resting and camping at night, and then at least 200 ml of fresh water can be collected within 8-10 hours, and even at the highest Nearly 1 liter of fresh water can be collected.

This fresh water is enough for a soldier to use for a day.

If you save some drinks, even two people are enough.

This place is close to the sea, and seawater is easy to obtain. As long as you pour more water into the earth ditch beside the pit, so that the humidity of the distillation pit is sufficient, then the collected fresh water will be more.

I have 10 people in my class and I have ten raincloths, but I need raincloths to sleep at night, so I can only take out five of them to collect fresh water.

In the early morning of tomorrow, it is estimated that about 2000-10000 ml of fresh water will be collected. If we look for some other wild fruits to provide water, it is estimated that we can survive the day.

Just as the soldiers of the 1st Company were camping at their respective rest points and started looking for food to fill their stomachs~lightnovelpub.net~, in the camp of the Haiphong Company on the island, Zhuang Yan, the instructor Zhao Huanbin, and a few others. A platoon leader is sitting under the big tree in the camp.

"Looks like it's almost time."

Han Bean Sprout looked at his watch, looked up at Zhuang Yan, and reminded him.