Xu Yuanzuo filled his lungs and said, "You see, what is the most important thing in Yang Mansion Feng Shui?" Sunny lighting, ventilation and water. The reason why the toilet should be careful and cautious is that the ventilation is smooth. If you use an ordinary aqua toilet, there is always a smell in the house, even if it is in the downwind outlet, it can be blown out quickly, and the stench is always there. Although the toilets in each room are flushed by servants, they are carried out all the way, and the stench is not also permeating the house? ”

The aqua toilet is used by people and stinks so much that it is impossible to get close to. It's just that it's far away from where the owner lives, so I can't usually remember it. The toilet is a problem, that thing is in the house, no matter how diligent people are, they can only use it and take it out to flush, even if there is a lid, the stench has already spread.

"I came up with a solution, which was to dig culverts, lay iron pipes, and bring waste water from the houses into this septic tank. In this way, there is no longer a source of filth in the house, and there is no need for slaves to empty the toilet and smoke the house. Xu Yuanzuo said, took out a drawing from his pocket, and unfolded it for Cheng Zai and Li Wenming to take a closer look.

The two had never heard of such a brilliant idea, and they saw a thick line running diagonally from the septic tank to the bottom of the house, like a trunk. Thin lines stick out like branches and connect to the rooms.

Xu Yuanzuo's fingers slid over the lines: "The main pipeline is thicker, and the other pipes are slightly thinner." The culvert of the main pipeline is dug slightly deeper, and other straight pipes are connected from the upper end, which can be slightly shallow. The water potential is low, and it will be flushed into the septic tank as soon as it is flushed. Then it's none of our business, let them dig it out on a dark and windy night. ”

After Cheng Zai and Li Wenming listened, they frequently bowed their heads: "This really won't stink the house." But how much money does it cost? ”

"The price of iron is not expensive." Xu Yuanzuo said: "Cast iron pipes don't need to be molded in one piece, just spliced together with iron hoops." This is handed over to the subway craftsmen and shops, and the size is set, which is nothing. ”

"The price of iron is cheap. A hundred catties will cost almost five taels of silver. Cheng Zai settled the account for Xu Yuanzuo: "Laying such a long iron pipe, I'm afraid I can't do it without five or seven thousand catties of iron." The implication is that if you don't hesitate to spend so much money, I'm afraid that this project alone will top the price of the house.

Li Wenming also felt that compared with a little smell, such an investment was obviously not cost-effective.

――If you think the toilet smells, go farther away and tell your subordinates to pay attention. Willing to spend so much silver. Xu Jinglian's cleanliness is really not light.

The two of them said secretly in their hearts.

For Xu Yuanzuo, flushing the toilet is not simply about improving his quality of life – in fact, he has adapted to squatting pits since he went to college.

Septic tanks and sewer pipes are more of a feeling of past life.

Pig iron has a price, but feelings are priceless.

In any era, feelings are piled up with silver.

Xu Yuanzuo knew that these two people would not have the same feelings as him, so he said: "I read medical books and deeply feel that many diseases are actually caused by filth. After using this sewer pipe, the source of the disease is gone, and the plague can be prevented. Secondly. Manure can be used as fertilizer. ”

Huaxia began to consciously use organic fertilizer since the Zhou Dynasty. It's just that I didn't know about fermentation at that time, and throwing human and animal manure directly into the ground was considered fertilizer, and the inefficiency can be imagined. With the advancement of the times and the accumulation of experience, by the time of Xu Yuanzuo, the way of composting and manure was basically the same as that of later generations.

Therefore, human and animal excrement and domestic garbage can be used as fertilizer, and someone spends money to buy it. From bones to waste paper. There is a difference in price, and it is not pleasant at all. As for the pedestrians on the road, they pick up fruit and vegetable garbage casually. Sheep feces and dog poop are even more common. This is not because of the high quality of the Ming people, but purely because these things are money!

The metropolis of the Ming Dynasty was able to carry hundreds of thousands or even millions of people, but it did not have the stench and epidemic of European cities of the same period, and it was clean and hygienic, which made the missionaries cry out incredibly. It is due to the extreme thirst for fertilizer in agricultural countries.

"My family is small, so I dig culverts and lay iron pipes. What if it's a neighborhood? What about a city? Xu Yuanzuo said leisurely: "At that time, the ground can be hollowed out and made into an underground canal, and the waste water and sewage will be led out of the city." How much land can be fertilized by collecting human and animal filth in the city? And there's another benefit. Even if it rains for days, there will be no flooding. ”

Li Wenming pondered, and secretly said in his heart: If such a sewer is cultivated since ancient times, it will be a political achievement that can be recorded in Fang Zhi. However, in the past two years, there has been a large water conservancy project in Wusong and Huangpu, and the owner does not need to brush other projects. If it is necessary in the future, it can be included in the list of candidates.

"Shanghai has it, but they haven't gathered the filth." Cheng Zai said.

Xu Yuanzuo was stunned: "Huh? I know that the Song people like to do this. The underground waterways built in Bianjing even attracted robbers and gangsters to stay, the so-called ghost fan building. When was the one in Shanghai built? ”

Cheng Zai was quite strange that Xu Yuanzuo knew the sewers of the Song people in Bianjing, but he did not know the sewers in Shanghai. He explained: "During the Song and Yuan dynasties, there were village sages in our township, who presided over water conservancy in Shanghai, excavated dark rivers, diverted silt, and set up ten underground sluices, the largest ones were five or seven acres, and the small ones were three or five acres, and tens of thousands of wooden piles were used, which was a very huge project. Wu Songjiang did not cause harm in the dynasty, and benefited a lot from this. ”

"Hmm! Can I check it out? Xu Yuanzuo was itchy when he heard it.

The corners of Cheng Zai's mouth twitched: "Then what's there to see?" I don't know how foul it is. ”

Xu Yuanzuo thought about it for a while, and then said: "So how can we not do the project that can be completed in the Song and Yuan dynasties?" If there is a new city in the future, the sewer will be built in advance, and there is no need to lay it with iron pipes, wouldn't it save costs? ”

Cheng Zai shook his head slightly.

Li Wenming said: "If you calculate it like that, I don't know how much it will take to use slate and bricks." ”

――You are all so good at settling accounts, are you tired of chatting?

Xu Yuanzuo pursed his lips and said: "This should be done by the government, it costs a lot, and the people make a lot of profits, but it is still a good thing in general." ”

When it comes to government responsibility and social wealth redistribution, Cheng Zai and Li Wenming can't say anything more. Now that donations are tax deductible, maybe they can really be cultivated. In the end, paying taxes can only be exchanged for a tax stamp, but donating a project can be carved in stone and will last forever.

Xu Yuanzuo was going to spend the entire holiday on the overseer, so he wore thicker. Li Wenming and Cheng Zai are not used to wearing thick clothes in winter because they go in and out of the heater, and they already feel a little cold when they stand in the cold wind at the moment. was about to say goodbye, when he suddenly saw Xu Yuanzuo's little Xi Qimiao running over.

"What's the matter?" Xu Yuanzuo asked.

"Brother Zuo'er, something is wrong, just now there is news from the county town, it turns out that your master Shizhou Gong has been squeezed out by Gao Gong and has been dismissed and returned to his hometown." Qi Miao said urgently.

Xu Yuanzuo was slightly stunned, and in an instant, he had returned to normal.

Lin Dachun is a provincial scholar and politician, and his official positions are extremely high. Others don't know his relationship with Xu Jie, but Gao Gong is very clear. On the issue of canonization, they were all members of the Yuwang Party of the united front. Gao Gong couldn't retaliate against Yanlu, and cut Lin Dachun first, although it was unexpected, it was reasonable.

"Helplessly, the flowers fell." After all, Xu Yuanzuo is not the cloth cloth Zaishu who controls the world, and a sentence of the ancients came out of the sigh.

Cheng Zai and Li Wenming felt in a trance that they were standing with Xu Yuanzuo, and their identities were naturally much higher. casually come over to chat, and you can hear such high-end news. Looking at Xu Yuanzuo's reaction again, if he didn't know it early, he was quite confident that Lin Dachun would recover in the future.

Since there is "helpless flowers falling", will the "déjà vu swallow return" be far away?

Li Wenming thought about it one step more: Xu Jinglian's hidden "Yan returns", does it mean that Lin Dachun will come back, or does it mean that Gao Gong enters the cabinet is "helpless"? The former is a preface, and the latter is an intertextual meaning...... Alas, it seems that it is really a sad thing to be the friend of a high-ranking official and a big man.

"Who told me this?" Xu Yuanzuo asked Qimiao.

Qi Miao said: "It's the family member who came to deliver New Year's goods from the county town, and they are still waiting in the sedan hall." ”

Xu Yuanzuo pouted: "Clean up, we have to go to the county town." He said to Li Wenming again: "Is Mr. going back with me in the same car, or will you play in Tangxing for a few more days?" ”

Li Wenming's wife and children are coming from Shaoxing this year, so he is too lazy to go back for the New Year, so he came to Tang Xing to find Xu Yuanzuo to play during the holidays. seems to be moving around, but in fact, it is also a foreshadowing for his son to be able to enter Shenghu Academy in the coming year.

Xu Yuanzuo couldn't hear such an off-string sound, he hadn't broken it for the past two days, and inviting him to the same car at this moment was an accurate reply: I know all the intentions, there is no problem, and I can go back!

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Word Count Patches:

First of all, thank you for your commuter pass support~! I hope the recommended tickets can keep up with it! Plus more here, talk about the heart.

Secondly, if the reader is interested, you can search for the "Shanghai Yuan Dynasty Sluice Site Museum", which contains detailed physical objects. Tens of thousands of wooden stakes are numbered and covered with bluestone slabs, connected by cast iron. 700 years later, it is still strong and difficult to break, which shows the meticulousness of the ancients. Of course, the site of this sluice gate is only one of the ten sluices, and the other nine are only found in the classics, and the ruins have not yet been discovered.

Finally, ask for a monthly pass and a recommended ticket.

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*(To be continued......)

PS: Ask for monthly passes and recommended tickets~! I would like to ask for all kinds of support~!