After thousands of years of corvee service, it ended in Zhu Cilang. The civil servants have become a profession to receive the imperial court's salary.

The professional civil servants completely solved the disadvantages of corvee service. However, this time the construction of the canal was not the court's expenses, but the sucker Zhou Kui.

The first batch of glass tubes were transported to Yuquan Mountain, which was simpler than imagined. Glass tubes as thick as a disc were baled with straw. Then they were transported carefully to Yuquan Mountain by mules and horses.

Iron smelting plants, steel bars made. Although from the perspective of modern people, these so-called steel bars have a fragile texture and are more than enough to build canals.

Dig deep into the trench and make a wooden trough with wooden boards. Put the steel bars in, then put the glass tube on. Then tie the outer periphery of the glass tube with steel bars. Finally, pour concrete.

The so-called concrete is homemade cement. Cement made of slag, limestone, wood ash, etc. from mineral furnaces.

Cement is not strong and is not suitable for building high-rise buildings. However, it is enough to reinforce the periphery of glass tubes.

After the segments of cement pipes are made, they are connected to each other and then buried underground. They continue to extend from Yuquan Mountain toward the Forbidden City Palace.

Everything is difficult at the beginning, from the slow progress at the beginning to the rapid progress now. It turns out that laying a pipe to the capital is not difficult.

The only thing is to build bridges when traveling mountains and rivers. When encountering a mountain range or hillside, you can only use a large number of civilians to excavate. These are the most expensive things.

Fortunately, the people all have money to get it, which invisibly accelerated the progress of the project. Soon, the pipeline was laid to continue to extend.

Fortunately, there is one advantage, that is, the emergence of gunpowder. When you open a mountain and encounter rocks, gunpowder exerts great power.

Use iron Qian to drill holes in the rock and then pour black gunpowder into it. As the fuse burns, the gunpowder explodes violently, and the rock will be instantly blown up.

The project progress was very fast, which was greatly beyond Zhu Cilang's expectations. However, this seemingly huge project has many problems in some details.

First of all, there is the problem of valves. Also, if the water source arrives in the Forbidden City, how to solve the problem of faucets.

If you don’t use a faucet, you can directly cause the spring water in Yuquan Mountain to flow day and night. This will literally cause huge waste. No matter how rich the water reserves of Yuquan Mountain are, they cannot withstand such tossing.

Faucets, a simple thing, are a complex technical problem in this era.

Before the faucets appeared, the walls of the water supply spring were inlaid with beast-shaped heads, usually made of stone, and a few "flower nozzles" made of metal. The water flowing out of there was always a long flowing water without any control. In order to avoid wasting water and solve the ever-increasing supply of water resources, people developed faucets.

The ancients opened up the bamboo joints and then connected them one by one to attract the water from rivers or mountain springs. Until later, a spiral lifting faucet appeared.

Faucets were not too difficult to produce in ancient times, but they only needed a thread. This was not a problem for military battles.

The difficulty is that even if you cast a small faucet, Zhu Cilang had to take action personally.

Because almost not many people understand these technologies, and there is also theoretical knowledge.

The ancient Romans created the most advanced water supply system, and they invented aqueducts, water towers, fountains and sewers for this purpose. These useful designs are still being used by future generations.

The Romans paid great attention to the sanitation of the water source and protected it at all times to avoid contaminating it. The famous tyrant Nero ran to the water source in the suburbs and swam, which made the clean-loving Roman people so angry that everyone accused him, adding another stain to his tyrannical rule.

The ancient Romans were very smart. The ditches built with stone were built very firmly, with arches made on the top and slightly inclined at the bottom. Since the water source is mostly on the mountain, the water transport pipelines have to cross mountains and cross ridges and transport them to the opposite mountain through the principle of a communicator. If you want to save trouble, you can directly spread the ditches to the foot of the mountain and then spread them up the mountain from the foot of the mountain to cross obstacles. The huge drop will generate strong water pressure and break through the ditches at the foot of the mountain. Therefore, between the valleys and rivers, high arch bridges must be set up to raise the channels for transporting water, so that the water can be transported to the city in a relatively gentle way, which creates a world-famous elevated water diversion channel.

The city of Rome has successively built 11 large waterways. The water source of the water supply system is rivers, lakes and springs around the city. Some water sources are far away, such as the Messia waterway built in 144 BC, which is 62km long. The water is first stored in more than 200 large and small reservoirs and ponds around the city, and then enters the city from different heights through the waterway to meet the city's water needs. In addition to supplying necessary domestic water, water must also be supplied to public bathrooms and public fountains. In addition to conventional channels, many places also use siphons, tunnels and stone aqueducts supported by continuous arches.

Why did Zhu Cilang be anxious to build a similar water diversion channel? In fact, in addition to saving manpower, material resources and financial resources, and introducing drinking water from Yuquan Mountain into the imperial city. The bigger problem is personal hygiene.

Don’t think that the ancients paid much attention to hygiene, although the concubines and nobles in the harem would take a shower and change their clothes before being greeted by the emperor.

However, the huge personnel composition of the entire Forbidden City, not to mention the guards outside the palace, just the palace servants in the palace, personal hygiene is a huge problem.

The palace maid is a little better. After all, as a woman, she is relatively cleaner. Even if she loves clean, it is a huge problem to take a shower.

The eunuchs are even more miserable because eunuchs need to be cleaned before they can enter the palace. These eunuchs who have cleaned their bodies have suffered huge damage, which makes some eunuchs often suffer from sequelae of enuresis and even incontinence, which is terrible.

Especially the eunuchs at the bottom, they had a odor on their bodies. Zhu Cilang was also deeply hurt.

It’s better for those eunuchs at the top, they are at least qualified to take a shower and change clothes. For those eunuchs at the bottom, some of them are extremely miserable.

Most eunuchs had a strong smell of urine. According to the memories of the palace maids in the late Qing Dynasty, two essential objects on these eunuchs were knee pads and the other was towels. Since eunuchs often had kneel down to meet the emperor in the palace, there must be a towel under the crotch of the eunuchs at any time.

It includes the dog legs, the blessing and wealth, and the three joys are the same.
Chapter completed!