People have left their names, and geese have left their voices.

Since he has been here in Luzhou, Li Yuanjia wants to leave a fortune to this city that only he can give.

And on the other hand, his thoughts are also very simple, since he is now the assassin of Luzhou, and he doesn't know if he will leave here because of the rotation of the princes in the future, even for his own health and a long life in the future, dig an underground sewer system for Luzhou City to improve the sanitary environment or something, it is definitely a profitable deal!

The question is, how should the sewer be designed? How to construct?

Chen Lin left with a stomach full of doubts, while Li Yuanjia, who stayed behind, came to the housekeeper Han Shan with more questions: "Old Han, I want to ask you something......

"Don't dare, the king, you have something to ask, but I don't dare to ask for two words!"

"Alright, alright!"

Looking at Han Shan's panicked look, Li Yuanjia was really tired of his heart, waved his hand and said, "Let's get down to business!" I see that the ditches used for drainage in our house are very new, so they must have been dug to welcome me, right? Who designed this...... Ahem, who presided over the construction? ”

As the residence of King Xu, the Luzhou Government Office is of course the most elaborate building in the city, and the drainage ditch is no exception.

Although he usually doesn't care about it, in the days he just moved in, Li Yuanjia carefully looked at every corner of the government office, and naturally he didn't let go of these open ditches. Moreover, after staying for more than a year, there have been several heavy rains in Luzhou City, and there has been no rainwater accumulation or difficulty in discharge in the government office each time, which shows that the design of these ditches is quite reasonable, and it also makes Li Yuanjia interested in the original designer.

"This ......"

After listening to Li Yuanjia's question, Han Shan suddenly looked confused.

Who presided over the construction?

This question really touched Han Shan's blind spot, leaving him without any clue at all!

However, as an excellent housekeeper, Han Shan immediately thought of an answer, and immediately said respectfully: "Back to the king, I will let them ask immediately, and they will know in half a day at most." ”

King Xu wants to know something about Luzhou City, it's not easy?

However, Han Shan just wanted to say that he would go now, but Li Yuanjia shook his head and said, "No, don't worry. ”

After speaking, without waiting for Han Shan to reply, he turned around in the room by himself.

Li Yuanjia has also seen the drainage system of this era, not to mention these in Luzhou City, the most advanced and luxurious drainage system in Chang'an City in Datang, he has also seen it many times. Chang'an north and south eleven, east and west fourteen streets, the city is divided into 110 squares, the drainage system throughout the city in every corner, around the building is common brick paving scattered water, seepage wells and drainage pipes.

Of course, most of the streets are drained by ditches on both sides, whether they are made of earth or brick.

The road surface is high in the middle and low on both sides, and there is a drainage culvert under the gate, which can be said to show the high standard of architecture of this era......

However, knowing these does not make Li Yuanjia know how to design and build a sewer.

For example, how to design the direction of sewers, to use the topography of the city or to use the power of engineering? For example, is the sewer built with earth, bricks, or stone? So in the final analysis, we still need to rely on the power of professionals - just like Niu Da Niu Er, and Chen Mu, the professionals who can turn Li Yuanjia's ideas into reality with the technology of this era. In addition, he also needs to consider a lot of things, such as how to recruit people, how to solve the cost of building sewers, and so on.

And......

Li Yuanjia remembered an important reason why he was unwilling to wander around Luzhou City, raised his eyebrows, stopped and said: "That's it, old Han, in addition to the person who presided over the construction of these ditches, go check some things for me......"

……

"Father, you're back!"

As soon as Chen Lin returned home, his eldest son Chen Zhi immediately came to greet him and saluted respectfully.

Chen Lin, who had something in his heart, was a little careless, waved his hand and said casually: "Well, get up...... Sit down and talk. ”

Seeing his father's expression while sitting down, Chen Zhi asked with some curiosity: "Father, you went to King Xu just now, but what happened?" ”

Sometimes he really doesn't seem to understand his father's thoughts, he clearly knows the plans of King Xu, and he also knows that Li Yuanjia definitely doesn't want to have any contact with the officials and gentry in Luzhou, and even warned himself that it is best to pay attention to avoid suspicion in the future, and not to have too much contact with King Xu, but he himself never pays attention, and runs to the Luzhou government office twice in three days!

The old man's thoughts, Chen Zhi has always been a little puzzled.

There is nothing to hide from his son, Chen Lin quickly nodded, and said the key point he talked about when he went to see Li Yuanjia today: "Well, King Xu asked me about recruiting people's husbands. ”

"Recruit people?"

Hearing this, he was slightly stunned, and Chen Zhi immediately said in surprise: "The king wants to build pavilions? How much does he intend to build? When does it start? ”

"No, not those."

Shaking his head, Chen Lin hesitated, frowned and asked, "Zhi'er, do you know what the sewer is?" ”

"Sewers? The child doesn't know. ”

After thinking for a while, Chen Zhi quickly shook his head and asked puzzledly, "Where did my father hear this?" Could it be...... Where is King Xu? ”

Thinking of the place where his father had just gone, Chen Zhi quickly had a guess.

Chen Lin naturally didn't know what his son was thinking at this moment, so he just nodded and said, "That's right, I heard it from King Xu, and it seems to be related to the sewage in the city...... The king asked me how many people Luzhou can recruit today, and it seems that he is disgusted with the stench of summer in the city! ”

"This ......"

After listening to his father's speculation, Chen Zhi was speechless.

Of course, he knows exactly what it looks like in the city of Luzhou in summer, especially when it rains, it is often sewage flowing sideways, mixed with the smell of garbage, and it feels disgusting when you think about it. But didn't King Xu stay in his Luzhou government office all the time and rarely go out?

No matter how stinky it is outside, it shouldn't be able to reach there, right?

However, of course Chen Zhi didn't dare to complain about these in front of his father, and after thinking for a while, he replied: "This is not strange, once when I traveled with the king, I once heard him complain...... But except for Chang'an and Luoyang, isn't this the case in every city in the world? How can the king solve it? ”

"I just don't know, that's why I'm worried!"

Shaking his head, Chen Lin sighed softly: "What I'm most afraid of is that he has a whim, and when the time comes, it will not only waste people's resources and material resources, but also cause resentment among the people, then it will be really troublesome......