"Your Highness, building a well is indeed a good thing, but the groundwater is very turbid and cannot be drunk at all. It is fine to use it to irrigate crops, but how can the people bear without water to drink? It is still a dead end."

Song Qiancheng sighed deeply, rubbed his temple, and wandered around the well, confused.

"It shouldn't be like this. Why would this happen? According to past practice, the groundwater should be turbid at the beginning, but we let the water flow for a day and a night and it's still like this..."

He was puzzled and couldn't figure out the reason.

Wen Jingchi asked his guards to fetch a bucket of water.

I picked up the scoop and scooped some water, and found that the water looked turbid and had a yellowish-brown color.

I originally thought that this was just normal mud and sand. After waiting for nearly a quarter of an hour, the yellow stuff showed no sign of settling.

Song Qiancheng came over and reminded: "Your Highness, we have already experimented and tried many times to try to let the silt settle, but for some reason, although the silt has settled, the water is still turbid."

"I wonder what advice you have, Your Majesty. How can we make this water clear?"

This time, he threw the question to Wen Jingchi instead.

But he forgot that Wen Jingchi was not a water conservancy expert, so how could he know more about such things than him.

Chu Weiyue leaned over to take a look at the water and frowned tightly.

He said nothing, but took a bucket of water away. When it was late at night and everyone was asleep, he locked himself in the room and began to study seriously.

In modern times, she knew that there were special tools for purifying water, and they were not complicated to make.

Chu Weiyue started with the simplest method and boiled the water, but found that it still could not be clarified.

Even after boiling, it remains yellow.

She took a small silk handkerchief and slowly poured the water in.

These silk handkerchiefs are very fine. After filtering out the mud and sand, the water becomes a little clearer, but it still has a faint yellow tint and cannot become completely colorless.

Although it was not completely successful, Chu Weiyue was not discouraged and continued to study the filtration device.

After several experiments, she added ten layers to the silk hand scroll.

This time the experiment was finally successful, and the water became quite clear.

Seeing this scene, Chu Weiyue smiled excitedly.

The next morning, he immediately ran to the yard where Song Qiancheng lived. At this time, Song Qiancheng had just returned from outside, covered in dust.

Seeing Chu Weiyue holding a bowl of water, he looked a little shocked: "Where did you get the water?"

Now the Ouyang family is in a mess. In the past, they had to transport clean water from other places, but now the reserves are not enough.

Besides, even the water in their house is not so clear.

Chu Weiyue smiled brightly: "What else could it be? Of course, the filtration device I worked on was successful. I added ten layers of silk handkerchiefs, and then used other methods to finally make the water very clear..."

Although her explanation was not very clear, she demonstrated it again in front of Song Qiancheng.

After watching her demonstration, Song Qiancheng's eyes lit up and he couldn't help but praise her.

"It's really amazing, but this thing is a little too small. I'm afraid it's not suitable for use in a well."

Chu Weiyue sighed: "This is also what I am worried about. The well is so big, we must expand this device, but the handkerchief cannot be used in the well, so how can we filter it?"

This was another new problem, and Chu Weiyue racked her brains but couldn’t figure it out right away.

Song Qiancheng smiled calmly: "Don't worry, the fact that you can invent this kind of thing proves that you are a genius. As long as we study it together, we will definitely find the key to the problem."

"Come in, and let us study your invention together, and see if we can find a substitute for it, so that it can be used on the well."

The two of them closed the door of the room and began to study seriously. They didn't ask about anything and even had their lunch delivered to them.

At noon, Wen Jingchi sat in the restaurant waiting.

The dishes prepared today are all Chu Weiyue’s favorites. On normal days, she would come over to eat at this time without even having to be called.

I waited for half an hour today, but didn't see any sign of her.

Shen Mubai yawned: "Say, should we start eating first? The food is getting cold!"

There was obvious dissatisfaction in his tone.

Wen Jingchi didn't care. He glared at him and turned away.

As soon as he left, Shen Mubai picked up his chopsticks and ate heartily, not avoiding anyone at all.

When I arrived at Chu Weiyue's room, I found that she was not there. There were only a lot of handkerchiefs thrown on the floor and the room was a mess.

This made his expression change, and he instinctively thought that something had happened.

But at this time, the little maid who was responsible for taking care of her daily life came from outside.

When he saw Wen Jingchi, he immediately smiled brightly.

"Your Majesty, you are here to look for the future princess, right? She left early in the morning with something unknown in her hand. She seemed to have gone to the courtyard where Song Qiancheng lived, saying that she wanted to see him and see what she had invented..."

The little girl didn’t remember what was said afterwards very clearly, so she told him everything she knew.

After hearing the last part, Wen Jingchi's mind was in a mess.

He didn't listen to any of the proceedings, he only knew that Chu Weiyue went to find Song Qiancheng and had been there since morning till now!

He angrily came to the yard where Song Qiancheng lived and found two people laughing in the room. There were a few side dishes and two bowls of rice in front of them.

This scene made Wen Jingchi's face turn completely dark.

"What are you two doing here?"

Wen Jingchi walked over, his tone suppressing a hint of irritability.

Based on his identity, he forced himself to suppress it and hid it very deeply.

Chu Weiyue walked over without hesitation and grabbed his hand: "I came here to find Song Qiancheng to research something. You see, we are almost done."

Wen Jingchi had no interest in what they were researching, he just knew that the two of them were having dinner together.

He glared at Chu Weiyue, turned around and left without saying anything.

Watching his back as he left, Chu Weiyue scratched her hair in frustration: "What happened again? I don't think I made him angry."

Out of the blue, he seemed to be angry again. Otherwise, he wouldn't be like this. He was fine yesterday.

Song Qiancheng didn't think much about it. He was completely immersed in Chu Weiyue's invention.

"Come and see, I suddenly found a good idea."

I originally wanted to ask Wen Jingchi for clarification, but this sentence attracted Chu Weiyue over, and the two of them tinkered with it while eating.

When I arrived at the restaurant, I found that Shen Mubai had almost finished his meal and was dozing off in a chair, holding his stomach.