While Li Tai was enjoying himself in the post station, Ma Zhou was led by one of Han Xian's men towards a hidden mountain spring.

Ma Zhou is now young and strong, so although he is only a civil official, he does not feel that the mountain road is too difficult.

After more than an hour of traveling, the two finally came to a waterhole.

On one side of the waterhole, a mountain spring is constantly sliding down from the top of the mountain.

And just where the spring falls into the pool, there is a bottomless hole that continuously drains water into the unknown, so that the water level of the pool remains constant.

The horse watched carefully around the waterhole for a while, and then stood in the waterhole and looked in the direction of the farmland at the foot of the mountain.

At this time, Ma Zhou's brain was spinning rapidly, trying to find a way to divert the water from the waterhole out of the mountain.

It has to be said that sometimes smart people always think the same thing.

The solution that Li Zhi thought of in Shuozhou was quickly thought of by Ma Zhou.

However, since the waterhole is already at a high level, Ma Zhou only needs to let people guide the water down.

After thinking of a way, Ma Zhou happily returned to Songzhou City and told Li Tai his idea.

After listening to Ma Zhou's method, Li Tai said happily: "This law is wonderful, and all the land in Songzhou can be unharmed according to this law. ”

After listening to Li Tai's words, Ma Zhou smiled bitterly and said: "Your Highness, the fields in Songzhou are unevenly distributed, and the specific situation needs to be observed on the spot before drawing conclusions." ”

Li Tai immediately came to his senses after hearing this.

He was so happy just now that he completely forgot that there was more than one land in Songzhou.

However, Li Tai's mentality was very good, and he just heard him speak: "There is more than one mountain spring in Songzhou, and it is enough to deal with each other." ”

Ma Zhou was speechless for a while after hearing this.

In order to avoid embarrassment, he had to quickly say goodbye to Li Tai and inform Han Xian to arrange manpower.

Maybe Li Tai is really blessed, and his unintentional words have really come true.

When Han Xian and Ma Zhou compared the mountain springs that had been discovered with the locations of the farmlands in various places.

I was pleasantly surprised to find that although some mountain springs are far away from the farmland, they can also be brought down the mountain for the people to carry water.

As a result, the drought in Songzhou was easily resolved.

Solving the drought in a state so easily gave Li Tai great confidence.

So he immediately cheered up and went in the direction of Jiaozhou with Ma Zhou.

When Li Tai arrived in Jiaozhou, Li Zhi on the other side also happened to arrive in Yunzhou.

This is the Datong of the previous life, and it is also a treasure land rich in high-quality coal.

Of course, Li Zhi's main purpose in coming here was naturally not to look for coal mines.

The first time he came here was to pull Guo Dunjie, the assassin of Yunzhou, and began to visit around.

At this time, although Yunzhou was crossed by the Sanggan River from west to east, the alluvial plain by the river had not yet been formed.

As a result, the Sangan River floods every summer.

Therefore, in the land where the Sanggan River flows, no one dares to cultivate the cultivated land.

What's even more frustrating is that once there is little rain in Yunzhou in summer, the water level of most of the rivers in the territory will plummet.

There are even times when rivers tend to dry up.

And this year this is exactly what happened.

There has been no rain in the whole of Yunzhou since the beginning of summer, so that the people have to use a lot of river water for irrigation.

As a result, a large number of rivers dried up early, which directly led to the current widespread drought.

Faced with such a situation, Li Zhi also felt an incomparably headache.

Today, there is almost no water source in the whole of Yunzhou except for the Sanggan River, and it still flows through the territory.

And the place where the Sanggan River flows is close to the edge of Yunzhou.

As a result, most of the land in Yunzhou cannot enjoy the convenience brought by the Sanggan River.

Li Zhi asked the officials of the Ministry of Industry who accompanied him to see if they could dig more wells in the farmland in various places.

However, the reply was that even if a well could be drilled, it would not be very many.

In desperation, Li Zhi could only arrange for the officials of the Ministry of Industry to go everywhere to find a location where they could dig wells.

He began to circle around Yunzhou again.

Almost all the well-watered rivers are on the outskirts of Yunzhou.

Most of the farmland in Yunzhou is located in mountainous areas and basins.

Such a complicated water diversion route made Li Zhi unable to think of a solution for a while.

So he had to go around Yunzhou for the next two days.

By the third day, Li Zhi was already feeling a little hopeless.

On this day he came to the banks of the Sanggan River, from which he could see a dry river in the basin in the distance.

There is a small amount of farmland next to the river.

The rest of the farmland is mostly terraced on the high mountains on both sides.

Li Zhi looked at this terrain and kept thinking about how to channel water to the high mountains on both sides.

Suddenly, a lightning bolt seemed to slip through his mind, and something seemed to have sprung up.

So he carefully searched for that feeling in his mind, and finally turned over a long-sealed knowledge point in the deepest part of his memory.

A water hammer pump is a pumping device that does not require any mechanical power and only uses water pressure to lift water to a height of hundreds of meters.

I can have people bring the water from the Sanggan River to the river in the basin.

The impact of the current is then used to pump the water from that river to a higher mountain.

Nowadays, there are ready-made iron-making workshops in Taiyuan, and all pipelines can be built using clay.

This allows you to start producing the finished product in just two days at most.

At that time, the downstream river should also be able to connect with the Sangan River.

Thinking of this, he hurriedly informed Guo Dunjie and Xiao Yi to organize people to dig the river.

And he himself returned to Taiyuan City with Liu An, Chai Long, and Duan Shizi.

In order to be able to quickly produce more water hammer pumps, Li Zhi specially designed some molds.

Let the craftsmen use cast iron for production.

In order to improve the sealing effect, Li Zhi also asked the tire workshop to help produce some sealing rings.

At the same time, he also ordered thousands of pottery pipes from a number of porcelain workshops and asked them to send them directly to Yunzhou after completion.

Two days later, everything was ready.

Li Zhi personally directed the local people to put the first water hammer pump into the river.

Then everyone nervously waited for the message from the farmland on the mountain.

As long as it succeeds, hundreds of water hammer pumps will be put into use in the future.

Xiao Yi and Guo Dunjie were also so nervous that their palms were sweating.

The reason why Xiao Yi was nervous was that he wanted to know if Li Zhi could still perform miracles this time.

And Guo Dunjie is nervous about whether the people can escape the drought.