In the study, the ninth princess robbed Mo Xiang's work, grinded a thick inkstone, Mo Xiang pouted, and brought a pot of freshly brewed big leaf tea. There is no shortage of tea in Shengjing, there are all over the country, Renault drank a few, and still felt that the big leaf group tea was the most right.

In this painting, a mix of charcoal and brushes is used. First of all, the container, Renault chose the wooden barrel, oversized, Zhang Tan has experience with hoop barrels, this time it is nothing more than a big head, the requirements are higher than last time, no leakage, but also add organs. The bottom of the bucket, leaving a water outlet, is connected with the pipe.

Choosing wood over iron is a consideration of the difficulty of processing and the problem of rust. In fact, the service life of the wooden barrel is not long, and it is very different from the iron barrel, and after a long time, even if it is not broken, it will be covered with scale.

The water pipe is a little difficult, I asked Zhang Tan, and the answer he gave was that pottery pipes, bamboo pipes, and wooden pipes have their own advantages and disadvantages, and I can't say which one is better, at least it can be used.

Renault first drained the wooden pipes, temporarily used bamboo pipes, and waited for Cui Qing to finish the kiln and burn a batch of pottery pipes or porcelain pipes.

Then there is the copper pipe, this is just handed over directly to Zhang Tan, he does this. Zhang Tan didn't understand why the copper pipe was very thin and coiled, Renault didn't say, and he didn't dare to ask.

Next is the shower head, called a shower on the earth, Renault didn't expect to be able to create such a fine thing, who would have thought that Zhang Tan asked a few words, and swore that this is no problem.

In fact, the difficulty of the shower is not high, the real difficulty is in the interface, the requirements for size are extremely high, as well as sealing, durability and other problems.

Zhang Tan patted his chest and promised that it would be good to hand it over to him, and he would ensure that it could be connected without leaking a drop of water.

Except for the big bucket, the others are all small pieces, Zhang Tan is not a person, a large family, several sons and apprentices, and they have been learning crafts from his side since childhood.

Distribute the things first, who can do what, what are the requirements, Zhang Tan explained them one by one, and sent the work down, he only made interfaces and copper pipes.

Huya was not idle, and the people who commanded Heifeng were busy outside the bath room, building a high platform against the wall, which was prepared for the bucket.

Then there is the floor in the room, there is no cement, so I can only use it later. Renault thought about it, the cement had to wait, he knew that it was burned, but how it was burned, he really didn't know.

Or study porcelain first, as long as you can burn porcelain, burn out the floor tiles and use them, and wait for the cement to burn out, in order to really start the bathroom, now everything is simple, you can use it.

The ground needs to be cleaned up, and the water has to be dug into the water, don't worry about this, the rich and noble people of Dachu have long had sewer pipes, and they use pottery pipes, and the small doors and small households are not so luxurious, and they directly use the basin to pour into the outside gutter.

The stove was built in the outhouse, and a lot of iron rods were installed in the stove and inserted into the stove wall.

Until it was dark, and finally ready, Renault sighed vigorously, it was too extravagant, he moved his mouth, and the family was up and down, and there were no idlers, dozens of people, just using a day, to turn his ideas into reality.

Bamboo pipes are attached to wooden barrels and enter from the roof to the outer room. The copper pipe is coiled and put into the stove, the bamboo pipe and the copper pipe are connected together, and the other end of the copper pipe is connected to the shower.

In the end, Renault knew why Zhang Tan dared to say that there was no leakage, it turned out that Da Chu had fish gelatin, this thing was a good thing, and playing fish gelatin was a hard work, but fortunately, there was no shortage of martial artists in Da Chu, and there were many people with great strength.

Fish maw, double called fish maw glue, is processed from fish bladder. A very useful natural animal gelatin, which was originally used to make bows and crossbows, and it is difficult to buy outside. With the name of Renault, you don't need to buy it at all, you can go directly to the Ministry of Industry to ask for it.

Zhang Tan climbed up and down, checked it a few times, and then he was relieved. Everything is from him, and he only vaguely understands the usefulness of this thing.

At the sound of an order, a fire was lit in the stove, a bucket was fed with water, and after a while, the brass shower was pouring water.

After waiting for a while, the water flowing from the shower was steaming, and Huya was dumbfounded, what was going on, how was it hot water?

Cui Qing came back before dark, and he was busy with it, and at this moment, Cui Qing, the Ninth Princess, and Zhang Tan all figured it out.

The whole set of devices is not complicated, and the reason is very simple. The water from the barrel flows through the copper pipes, and the copper pipes and the water are heated, and then flow out of the shower, which is naturally hot water.

"Sir, is there something Cui Qing doesn't know?" Cui Qing asked tentatively, he was just an apprentice, the secret master would tell you if he was in a good mood, and he wouldn't let you see it if he was in a bad mood. So when he asks for advice, he is extra careful.

"Something to say. "Renault is in a good mood, I'll try it in a while, and finally I can take a shower." In fact, he usually takes a bath, so it's more troublesome, there is a bath bucket, Moxiang and Chu Rui always want to help him wipe his back, Renault is not very suitable for this, and he has not agreed.

"Sir, this water flows down from a high wooden barrel, Cui Qing understands, heated by a copper pipe, Cui Qing also understands, but when it comes to a low place, why does the water flow to a high place?" Cui Qing asked, pointing out the section from the stove to the shower.

Yo, smart, Renault found that he was a little underestimating the big Chu people.

Nodding slightly, he tried to grasp the style of the university professor: "Yes, ask well, if you are willing to use your brain, you can learn something." ”

Speaking of which, I pondered for three seconds and reflected on whether the style just now was in place, and I felt that something was missing, as if I was too young to fit this model, and I had to change it.

"Since you know how water flows low, do you think this shower is high or low?" Renault asked, pointing to the steaming shower, feeling as if he had done something wrong.

Cui Qing was thoughtful, but he hadn't thought it through yet.

The ninth princess's eyes lit up: "Sir, the shower is higher than the copper pipe and lower than the wooden barrel." ”

Yo, another smart person, amazing.

"Wise, you have to remember that water flows from a high place to a low place, and the highest point is the key, and everything below the highest point is a low place. Renault said that it was a long time to say this, the three in front of him are smart people in Da Chu, but after all, they have not studied it systematically, and they directly talk to them about the principle of the connector, for fear that they will not understand.

Zhang Tan suddenly realized that he was the last one to understand, the craftsman was only good at his craft, and his education was much worse, far less responsive than Cui Qing and the Ninth Princess.

When he built it before, he was strange, and he always felt that he didn't understand anything, but now he finally understands everything.

After teaching the principle of the communicator, Renault put his little hand behind his back, went back to sleep, and didn't wash it today. The three figured it out, and Renault figured it out, and today's invention was messed up again.

"I'll try. Renault left, and Huya rushed in with excitement on his face, it was strange to take such a bath.

Strip and close the door.

'Whew......'

Less than ten breaths after entering the bathroom, the tiger's teeth were in a voice, and the roar could be heard in half of the Shengong Temple.

Without it, it's hot!

Renault designed a simple gas water heater, which was congenitally deficient in its design, with a single water pipe, and there was no way to adjust the temperature when the stove was heated.

When he saw the heat coming from the shower, he felt that something was wrong, and when he looked back, he knew what was wrong. A single water pipe, what comes out is hot water, and it is not temperature adjustable, it all depends on burning firewood, and it cannot be adjusted by adding cold water.

It's really a dog, I want to invent something practical, why is it so difficult, a simple firewood fire water dish, it's all done like this. Renault took a step first, that is for fear of embarrassment, such a water heater, it is just right to remove the hair of the pig, just take a bath.

Renault suffered from insomnia until the second half of the night, in self-blame, and fell into a deep sleep.

When I woke up the next day, it was almost noon. Mo Xiang and Huya were not outside the room, Gong Churui called for washing water and waited for him to freshen up.

"What about Huya and Moxiang?" asked Renault.

"I'm going to see the secret master. ”

"Hmm, the two seniors of Baijing and Flame are here?" Renault was startled, didn't he visit the dock the day before yesterday?

"Why didn't you call me?" This is a very rude thing, during the time of Da Chu, the most unsuitable thing for Renault is etiquette, there are too many etiquette in Da Chu, and politeness is uncomfortable.

"Your Excellency will not let you call you, saying that you are tired after a busy day, and you need to rest well. ”

Where can this work, I won't eat anymore, let Chu Rui lead the way in front, and the two seniors will come to the door and not go out to greet them, which is already rude. has been sleeping until now, and Renault himself feels that it is too much.

Renault always thought that he was going to take the secret master line, these two were his big backers, and the Chu Emperor had to go to the back row, others didn't have to be polite, these two were here, and they had to be entertained.

The more you go, the more wrong it becomes, it's not the study in the front yard, why did you run to the bathroom in the backyard?

White and flame, now in the bathhouse, they have climbed up and down several times, and they have kept people burning the stove, heating copper pipes, and adding water to the bucket three times.

Seeing Renault, Bai Jing patted him on the shoulder: "Yes, interesting little things, implicit truth, you deserve the name of this miracle." ”

Flame turned to look at him, but didn't speak, and Renault saw a hint of displeasure in his eyes, as if he didn't like the shower.

Bai Jing looked at it and laughed: "Don't pay attention to him, Brother Huo thinks that although this thing is wonderful, it is only suitable for rich people, and it is not beneficial to the people." ”

Renault hurriedly bowed, this has to be taught, the flame is not wrong, don't look at this thing is simple, and it doesn't require many materials, but large wooden barrels, copper pipes, copper showers, these things ordinary people can't afford, and this is not counting the handmade money when building.

"Today, our brothers, send you a secret pillar, listen to your long casual talk, come up with new toys, naturally I want to see it. Not to mention, things are average, there are a lot of mistakes and omissions, and a little correction is also a practical thing. The best thing is that it is implied. Bai Jing said, reaching out and pointing to the wooden barrel outside, then to the copper pipe in the lower place, and finally to the shower.

The so-called supreme principle is the principle of the communicator, Cui Qing vaguely felt it, and the whiteness and flame looked at it for half an hour, and then he realized it by himself.

Originally, it was a secret pillar, with the meaning of a return visit. The old man Baijing is interesting enough, and his actions are fast enough. Erect the secret pillar, even if the Shengong Hall is famous, Cui Qing and Huya will go out to do things in the future, it will be much more convenient, and the name is justified.

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