Song Ziyu came to the location of the sluice under the guidance of his subordinates, only to see that the upstream of the sluice gate had dropped due to the previous release of water, which made part of the outlet appear.

The channel below the sluice is reinforced concrete, while the inconspicuous position of the concrete channel has a passage similar to the opening of a ventilation pipe.

This is......

When Song Ziyu saw this pipe mouth, he was stunned for three minutes!

If I'm not mistaken, this should be a water pipe.

A water pipe that is about one meter straight away!

Such a large water pipe actually goes underground, where does it go?

Song Ziyu was stunned for a few minutes before he thought of calling Su Zhen to ask.

"We don't know what this pipe mouth does, anyway, this mysterious pipe was there when I was a child." Su Zhen racked her brains, and finally left words without a head or an end.

Song Ziyu asked Su Zhen to invite the oldest old man in the settlement to ask.

When he learned that the age of this water pipe was older than the old man, Song Ziyu suddenly thought of a question, so he asked, "Are there any supporting facilities near this water pipe?" ”

The old man is already sixty or seventy years old and dizzy, in this world where the average age is less than forty years old, the old man is indeed considered old, but his brain is very clear, and his speech is clear.

After thinking for a long time, the old man reacted and said, "I remember when I was a child playing here, I saw some iron pipes and iron lumps, but those things were all smelted and smelted by adults. ”

As he spoke, the old man suddenly remembered something: "No, I remember that there is still a residual iron lump in the settlement. ”

"Take me to see it!" Song Ziyi became nervous in her heart.

Under the leadership of the old man, Song Ziyu went around and around back to the Shoujiang settlement, rummaged around, and then saw the so-called iron lump in a huge fertilizer factory.

The thing was not square or round, rusty and full of all kinds of smashes, but Song Ziyu still recognized what it was at a glance.

What the fuck!

This is simply a motor with output power!

Song Ziyu has seen this kind of motor, and there is it in the shelter!

Or in the form of a unit!

The advent of this kind of thing proves that water pipes must be to deliver water somewhere, and there must be machinery such as pumps.

It's just a pity that over the years, those things have been destroyed by the uneducated survivors.

So, here's the problem!

Where does this water pipeline go?

Song Ziyu returned to the river and looked at the water pipeline and thought.

According to the direction of the pipeline, it is to the east......

East?

What's in the East?

Isn't it Yongsan Mountain to the east?

Song Ziyu suddenly blinked and thought of a possibility.

Song Ziyu greeted Tang Jian, called two locomotives, and then returned to Longshan in a hurry.

Back at the settlement, Song Ziyu plunged headlong into the base of the shelter.

Coming to the central management area of the shelter, Song Ziyu awakened the artificial intelligence Han Meimei and retrieved the map of the shelter.

Complex three-dimensional image maps emerge in front of you, rings are laminated, and various circuit diagrams are a mess.

Song Ziyu was dizzy and dizzy, and felt that his heavenly spirit cover was about to crack.

Sure enough, the Engineer is the weirdest species in the universe!

Song Ziyu can't read the drawings, but it doesn't mean that he can't do it.

"Han Meimei, find the underground water pipe for me." Song Ziyu ordered.

If you can't do it yourself, artificial intelligence will always work, right?

Immediately, a section of the pipe was cut off separately and placed in the void.

"The system shows that the water pipeline port is damaged and is now not functioning properly, and only three percent of the water is coming in." Artificial intelligence Han Meimei analyzed.

"Where does the water pipe lead?" Song Ziyu asked.

Han Meimei called up another map, and then marked the pipelines and ports on the map.

Song Ziyu saw it and understood it on the spot.

This water pipe leads to the Shoujiang River.

The truth is revealed!

Song Ziyu became excited.

With this water pipe, what are you afraid of?

Immediately, Song Ziyu asked Gao Zhongping to put down all the other things in his hands, and then dispatched technical personnel to repair the motor and the supporting pump.

For those parts that could not be repaired, Song Ziyu went to the civilized world to purchase and order, and replaced all those that could be replaced.

Finally, after a lot of effort, the pump generator set at the water pipe port has successfully worked again after many years!

With the roar, a large amount of sewage was pumped out by the water pipe, making the entire negative five layers stinky.

"It's been useless for too long, this water pipe has silted." Chen Lao said.

After three hours of discharge, the water from the pipes appeared clearer.

Seeing the water flowing from the Shoujiang River, everyone in the settlement cheered.

Water is life.

Unexpectedly, the water source problem that plagued the development of the settlement was long thought of by the sages who built the shelter.

"I should have known that such a permanent shelter must be equipped with a water source that can be used for a long time." Gao Zhongping said in hindsight.

"That's not all!" Professor Chen looked at one of the installations on the fifth floor and said, "They have prepared two sets of water purification devices, and one set of spare ones. ”

"These builders are really full of wisdom!" Gao Zhongping couldn't help but sigh.

Song Ziyu was also very emotional.

How did such a wise human being come to be on the path of destruction?

……

The problem of water supply has unexpectedly taken a turn for the better.

Although the work of the port pump is still limited by power, it is better than nothing.

Song Ziyu thought about it, and decided to use the idle population of Shoujiang to open a canal!

Hitting the mother-in-law on a rainy day, being idle anyway, these people might as well do something.

The work of organizing the canal was handed over to Su Zhen to be responsible, and he would produce technology on his side, Shoujiang would be in charge of people, as long as he was willing to work, he would take care of the food on his side.

As soon as they heard about Guan Rice, the survivors of the Shoujiang settlement took out their passion and joined the labor one after another.

Song Ziyu asked Qi Dachun to take dozens of brothers to be responsible for editing and making books for the workers, and they were paid one day's wages for one day, and they were paid on the same day.

So on the first day of work, one or two thousand people joined the work.

With so many people, it can be regarded as accounting for four-fifths of the population of the entire Shoujiang settlement.

With so many people, the project of digging the canal is progressing very quickly, and the excavation is carried out according to the specifications of six meters wide and three meters deep, and hundreds of meters can be excavated every day!

……

The opening of the canal is in full swing.

At the same time, Chen Lao's career has also entered a new stage.

With abundant and filtered clean water, Professor Chen has shown his advanced skills as an agricultural expert!

Professor Chen specially deployed a group of skillful and meticulous survivors in the settlement as trainees to start growing hydroponic vegetables and fruits!

Given the large amount of soil pollution on the wasteland, hydroponics is the only way to achieve vegetable freedom.

However, hydroponics requires a high quality of water source, which Professor Chen had not considered before.

Now the situation is different.

With sufficient water and water purification equipment, Professor Chen opened up a large area of hydroponic cultivation directly in the shelter.

Hydroponics is a delicate job!

First of all, Professor Chen will call on the people to use the various sealing utensils in the evacuation base to create suitable containers.

Foam boxes and plastic boxes are the most common for these utensils.

Clean the box and various bottles and cans before use, and then prepare the fixing cable ties and fixing plates.

After completing the preliminary preparation, the second step is to select the vegetables suitable for hydroponics.

The seeds and seedlings of these vegetables were specially wholesaled by Song Ziyu from the civilized world, including but not limited to lettuce, taro, sweet potatoes, etc.

Rinse the soil off the vegetables and cut off any excess rotten roots.

Finally, the root system was disinfected with a disinfectant solution prepared by Professor Chen.

After processing, the vegetables are fixed in a hydroponic tank, and the water level is used to contact the root system without affecting the vegetables themselves.

At this point, hydroponic vegetables are planted.

This planting method is very particular about maintenance, which is why Professor Chen recruited these ingenious people to operate it.

Professor Chen's hands-on education and patience are surprisingly good.

The gentleness with which these vegetables are treated infects everyone who learns technology.

Agriculture requires emotional investment.

"The difficulty with hydroponic farming is that it needs to be changed regularly, and it is generally best to change it every five days or so!"

"You must not change the water for a long time, otherwise the water quality will deteriorate, and the vegetables will rot."

"Diligence and care are very important in this regard."

"In addition, hydroponic vegetable cultivation needs to be well maintained and managed."

"Nutrient solution should be added to the water frequently so that the vegetables can grow vigorously."

"I will teach you how to mix this nutrient solution, and I will tell you the formula and the proportion of raw materials...... In the future, when we have the conditions, I will teach you how to make the stock solution. ”

"The environment for maintaining hydroponic vegetables requires warmth and ventilation, and the vegetables should be exposed to suitable light, otherwise the environment is not suitable and will have a negative impact on the growth of hydroponic vegetables."

"From this point of view, the energy and wind collection of the shelter are very superior......

Professor Chen Dun Dun taught, and these wasteland people listened carefully.

Among the desolate people were old people and half-grown children.

Everyone is not literate, and many people don't even know a word.

But all of them maintain enough respect in the face of knowledge.

Song Ziyu watched from the side and couldn't help but have some tears in his eyes.

In any classroom in the civilized world, it is difficult to see what is in front of you.

In the lecture hall of the university, I can see people who are dedicated to their studies, but I can't perceive this kind of devotion to knowledge.

These desolate people in front of them are more like disciples who worship the Buddha.

They treat knowledge with reverence as if they were gods.

This couldn't help but make Song Ziyu feel puzzled.

Why did such an outstanding nation, such a wise human being, embark on the road to doom?

What did those ancestors do wrong?

(It's a little monotonous, but it's an indispensable part of the book, and the next climax will begin, so stay tuned!) ）