Tap water must have water pipes and faucets.

It is easy to talk about water pipes, bamboo, ceramic, iron pipes, and there is no shortage of materials and production methods at present, but the faucets have some problems.

Because the faucet can be regarded as a precision equipment, to ensure that there is no water leakage after closing, it is necessary to ensure that the internal structure cannot have any gaps and must reach the molecular level closure level. This level of precision is definitely a very big challenge for the casting process of Daqin craftsmen at present. Therefore, Chen Xu does not have much hope for the traditional ball valve faucets of later generations. What he needs now is the simplest switch, because the height of the water tower will not exceed ten meters, and the water in the water tower will be only a few tons at most. The water pressure generated is not too large. As long as simple waterproofing measures are simple, it will not leak everywhere, so the requirements for the faucet are not high.

However, even with this not-high equipment, Chen Xu was still not sure. After all, in this fucking era, many things are easier to remember than to do, and it is even more difficult to do well. For example, a steel ball bearing has not been designed for several months because the precision requirements for the collar and steel ball are too high, and a slight gap and spacing error will lead to inability to use. Therefore, although several bearings of varying sizes have been made, the appearance looks decent, but in fact they cannot reach the application stage and can easily shake and fall apart during rotation.

After returning to the Academy of Sciences, Chen Xu ordered Sun Shujiu to find several craftsmen who were good at organisms, and told him what he asked, and also drew a sketch of a faucet to explain the principle.

Several craftsmen either stood, sat, or pulled their beards and hair, and began to think hard. After a long time, an old craftsman with gray hair said: "Mr. Marquis, it is definitely not easy to cast the faucet you mentioned with copper and iron, because the copper and iron are too hard, and as long as there is a gap, it will leak. However, I have made a ditches in a ditches, which are made of wood and stone. I will draw it for you to see. If it is feasible, it will be much smaller and it should be able to block the water from the water pipe..."

"Go and get the chalk and a small blackboard!" Chen Xu raised his hand and ordered, and a civil servant quickly moved a small blackboard and a box of round strips of chalk.

The blackboard is simple, just polishing the flat wooden board with black paint. The chalk is made of a mixture of gypsum and a very fine white soil. Chen Xu just took a mouthful of this thing, so a craftsman from the Academy of Sciences soon made it out of gypsum powder and a kind of white soil. After repeated improvements, it was basically not much different from the chalk in later generations. Now the Academy of Sciences and various workshops have begun to be popularized.

The old craftsman picked up the chalk and quickly drew a sketch of the sluice on the blackboard.

"Mr. Marquis, you see, your drawing requires that a hemisphere device be installed in the center of the water pipe, and the hemisphere is turned left and right to open and close. However, because the hemisphere is not easy to cast, and there will be no gap between the water pipe after casting, so it is naturally not sealed. The wooden gate I designed before is simple in structure. Once the wooden gate is closed, the water canal will not leak. Therefore, I think the hemisphere valve in the middle of the faucet that Marquis needs can be changed to a sluice gate. Marquis, look here..."

The old craftsman pointed to the center of the faucet on the drawing, "We only need to cast a square cabin. There are water inlet and outlet on both sides of the cabin. After I designed the wooden gate, I put it into the square cabin. I designed a handle that can be moved up and down on the gate. Lift the handle upwards. The water will flow from the bottom to lift the knife and press down. Press the handle down, and the water will naturally be cut off..."

"Hey, your method is simple!" Chen Xu naturally understood when he heard this. The structure was not complicated, and it was much simpler than his hemisphere device.

The old craftsman's design was affirmed by Chen Xu, and immediately became excited and said with joy, "Mr. Marquis, this kind of wooden gate can be big or small, and the workmanship is not complicated. It just needs to use wood that will not swell too much when exposed to water. In order not to be too easy to damage, the harder and finer the wood, the better!"

"No, this doesn't require wood at all, just use iron and copper!"

After Chen Xu learned about the structure of this faucet, he naturally had a new idea. He used chalk to draw a new faucet style on the blackboard, which was similar to the old craftsman's. Then he designed a new handle at the wooden gate in the middle. The new handle was connected to the switch knife: "I saw that there is no wooden gate here, just cast an integrated handle with iron. The fixed part of the wooden gate placed in the cabin was reduced. In order to be sealed, cowhide can be used as a waterproof pad..."

Chen Xu only made a small change on the old craftsman's wooden gate, but it reduced the difficulty of manufacturing the wooden gate by half. The reason why the wooden gate does not leak is that the wood has a certain elasticity, which is equivalent to forcibly punching a piece of wooden wedge into a gap, and swelling in the water, so that the close contact between the wood can completely block the water. This is something that hard copper and iron cannot do, mainly because the current process cannot reach such precision.

"Yes, the cowhide will swell when it comes to water. In this way, the iron gate knife can be tightly fitted with the cowhide, so it will not leak. This is much simpler than the pure wooden gate, and it saves effort. The Marquis is indeed smarter than us..."

Several craftsmen quickly flattered.

"Okay, you guys design it yourself and see what's wrong. It's easier and more convenient to make it. I just need to be able to use it. It's best to make the appearance more refined and beautiful!" Chen Xu shrugged and threw down the chalk and said, "By the way, what's your name? Why haven't you seen you before?"

"The Marquis of Hui, his subordinate is named Lu Erdan. A month ago, Lord Zhao asked me from Changsha County to build the dam outside the city. However, in the summer, the water was rising, and the dam was stopped, so the old man was idle all day long."

Chen Xu twitched a few times and said, "Lu... Erdan, well, the name is good. This kind of faucet will be named Lu's faucet in the future. It will be designed and made as soon as possible. Go to the Finance Office to receive a reward of 2,000 yuan later!"

"Thank you... Thank you, Marquis, I will not let you down!" Lu Erdan said excitedly and said that he would not shake. Several other craftsmen also showed envious expressions, and they were very jealous.

A simple faucet reward of 2,000 yuan is indeed a heavy reward, which is enough to support a family of five for several years to eat and wear.

After getting the faucet, Chen Xu wandered around the various laboratories of the Academy of Sciences and found that some were holding their heads in a daze, some were burying their heads and writing, some were grinding and creating, some were gathered in one episode to chat and fuck, some were drinking tea and reading newspapers, and there were even two guys playing chess, most of them looked so idle.

Chen Xu felt a little ache, but there was nothing he could do. The purpose of the Academy of Sciences was to gather some excellent craftsmen from all walks of life to create and develop themselves to see if they could develop good things. Chen Xu also took time to explain some basic knowledge of disciplines such as physics and chemistry, and put forward some simple applications such as scientific concepts in later generations. But after all, the limitations of civilization in this era are too great. These craftsmen who sit in the office and think about it are far less progressing than those craftsmen in factories.

As the saying goes, practice comes from true knowledge. Chen Xu frowned and instructed Sun Shujiong to inform all the craftsmen and craftsmen who were proficient in construction, institutions, water conservancy, and even bridge and road design of the Academy of Sciences to gather in the conference hall for a meeting. He returned to his office to write and draw and quickly made a few pieces of manuscript paper.

The conference room is not big, designed like a classroom in later generations, with rows of long seats, which can be seated for about 100 people. In front of it is a podium, with a blackboard that is 100 feet long and six feet wide hanging on the wall. There is also a podium on the podium, and there is a podium, with chalk, chalk rubbing, large wooden triangle ruler, ruler and protractor. If it weren't for the ancient costume people who were combed with buns, beards, robes and tall crowns, ordinary people would definitely think this was an ordinary classroom.

The people who came and sat there were whispering, wondering what the Marquis suddenly called everyone to a meeting?

However, it seems that since Princess Qingning passed away, the Marquis has never been here to give a lecture, and everyone is a little looking forward to it, because every time the Marquis lecture is full of incredible novel ideas, and many of the principles it tells are incomprehensible but unrefutable.

When Chen Xu walked in, the conference room was filled with the sound of exchanges and discussions. When Chen Xu came in, everyone quickly shut up and stood up to salute together.

"No gifts, please sit down!" Chen Xu waved his hand and put the manuscript paper in his hand on the podium, then glanced at the group of craftsmen and craftsmen from the age of sixty or seventy to twenty, and said calmly: "I suddenly summon everyone today because I am about to successfully build the villa outside the city..."

After everyone sat down, they looked at each other and guessed what the Marquis said, was it because he moved to a new house and asked everyone to join in to congratulate him?

So a few nimble minds stood up in an instant, "The Marquis moved to his new home, and I will definitely prepare a gift to congratulate you!"

When the others saw that something was wrong, they would not flatter him at this time, so everyone who had just sat down stood up and saluted, saying that they would prepare gifts to congratulate the Marquis on moving to his new home.

Chen Xu was covered in black lines, and then he didn't say anything. He picked up the triangle ruler and started drawing on the blackboard. He quickly drew a picture of the pipes for supplying water. Each part also marked the water tower, water pipe, kitchen, bathroom, bathroom, and even bathtub, dishwasher, toilet, faucet, etc.
Chapter completed!