"From now on, this will be our brother's summer retreat!" Merton said cheerfully, pointing to the pool.

At this time, there were no sewers, so Merton built the pool into a living water, and the well water on one side kept pouring in, leaving a culvert on the opposite bank, which overflowed once the water level reached, so as to ensure the flow of water and the clarity of the water.

"It's beautiful!" Qin Huaiyu exclaimed.

In their impression, the most pleasant thing to do in summer is to go down to the pond to bathe, but it is often muddy and dirty, and if you are unlucky, you may have bloodsuckers such as leeches to patronize it.

"Pretty?" Merton pursed his lips, if they had seen the blue swimming pool with the sand of the later generations, their jaws would not have fallen in shock.

Suddenly, Merton's heart moved, the reason why the swimming pool in later generations was blue was just because of the addition of copper sulfate, although there was no item called copper sulfate in Datang, but there was a drug called cholelum.

Cholelum, also known as blue alum, has the effect of inducing vomiting and removing decay, and is a commonly used emetic agent in ancient times.

………………

"Young Master! But someone is poisoned and needs to induce vomiting? Mo Wu ran over panting, but he got a message from Mo Si, asking him to come over with bile alum immediately, which made him startled.

If Mo Si hadn't repeatedly said that the young master asked for a low profile, he might have arrived with an ambulance.

"Did you bring something?" Merton asked.

"It's all here!" Mo Si handed over a medicine box, which was almost full of bile alum, he originally wanted to get a few copies, but he didn't expect that the young master would ask for as many messages as possible.

As a last resort, Mo Wu had to leave a little bit of gallium for Mo Hospital to spare, and all the rest was packed and brought over.

"Young master, how can you use so many bile alum, it is a medicine that is poisonous, and it is not good to use more bile alum." Mo Wu eagerly admonished, according to this measurement, even hundreds of people will not be able to use it up.

"Don't worry, it's not for people!" Merton said with a wave of his hand.

Only then did Mo Wu discover that there was a crystal clear pond in the backyard, and Qin Huaiyu and the three of them were soaking comfortably in the pond.

"Is it ......!" Mo Wu looked at the pool in front of him, and a bad premonition suddenly rose in his heart.

As expected, I saw a greeting from Merton, and the three people in the pool jumped out, picked up the iron pestle that had been prepared, opened the medicine box, took out the crystal blue gallium in the medicine box, put it in the clay pot, picked up the iron pestle and smashed the bile alum.

For participating in Merton's various experiments, Qin Huaiyu and the three of them can be said to be very willing, without any complaints, but extremely excited, almost no three people who have done this kind of rough work, but they are very attentive one by one, and they develop gall alum into powder little by little.

"This won't work!" Yu Chi Baolin stopped his iron pestle and got his clay pot for Merton to see.

Merton stretched out his head and found that the gallium in Yu Chi Baolin's clay pot had turned into powder, nodded and said, "That's it, these gall alum can be dissolved, as long as you are careful not to have large pieces." ”

Soon, the three of them all crushed the gallium in their hands into powder, and fearing that it would not be enough, they immediately clay another clay pot.

Looking at the crushing of gall alum without money, Mo Wu's heart was like a drop of blood, Mo Wu followed Hua Lao to learn medical skills, not only did he make great progress in medical skills, but even Hua Lao's thrifty habits over his hard life were exactly the same, and he couldn't see the waste of medicinal materials.

Seeing that the quick-handed Wei Chi Baolin still wanted to come to the third can, Murton hurriedly stepped forward to stop him: "It's okay, that's it." ”

The three of them gathered the crushed gallium together, and there was a full clay pot.

"Well, it's time to witness the miracle!" Merton lifted the clay pot and said in a loud voice.

Everyone suddenly looked forward to it, and they all stretched out their heads to look at Merton, and even Mo Wu, who was distressed about the medicinal materials, was also curious.

With a tilt of the hand, the sparkling blue powder is sprinkled into the water.

In an instant, a rich blue quickly spread from the front of Merton to the entire pool, and the entire pool water was suddenly extremely blue, like the reflection of the blue sky, coupled with the weeping willows, flowers and plants next to it, a beautiful picture appeared in front of everyone.

"It's ............ This is ......" Yu Chi Baolin pointed to the blue pool water and stammered.

"Like the sea!" Qin Huaiyu said obsessively.

"That's right! Right! It's the color of the sea! Yu Chi Baolin said excitedly, he once followed his father to the seaside, and saw the real sea, which is this blue color.

"The sea?" Cheng Chumo grew his mouth, at this time, due to the inconvenience of transportation, many people have never been out of a place in their lives, let alone reached the seaside, not to mention, located in a remote inland like Chang'an.

Except for Yu Chi Baolin, no one has ever seen the sea, even Qin Huaiyu has only seen the color of the sea from books.

Although everyone has never seen the sea, it does not mean that no one has fantasized about the sea, where did they ever think that the scene in the fantasy would appear in front of them so suddenly, it is as beautiful as imagined.

"Is this still a pool, I can't bear to go down!" Qin Huaiyu looked at the blue pool and couldn't bear to say in his heart.

Merton pouted and said, "What is this, it's just a pool of water." ”

At that moment, I took off my shirt, plopped and jumped into the pond, and the cool water of the pond suddenly washed away all the heat.

"Young master, no! This gallium is poisonous. Mo Wu said in shock on the shore.

Merton shook his head and said: "Don't worry, this is a pool of water, there is no problem with such a little bile alum, you think I don't know the role of bile alum, in addition to the beautiful color, the biggest effect is to kill the insect eggs and seaweed in the water, and ensure the cleanliness of the water." ”

After Merton's explanation, everyone suddenly realized, coupled with the fact that Merton had already tested the poison himself, Qin Huaiyu and the three of them were not to be left behind, and immediately jumped down.

"It's so hot, you've been running for a long time, and you're sweating, come down too!" Merton greeted Mo Si Mo Wudao.

"Thank you, young master!" Mo Si was already itching, and when he heard Mo Dun's order, he immediately took off his shirt and stabbed down.

Although Mo Wu also has a medical cleanliness habit, he can't help the temptation, and he gritted his teeth and went into the water.

In the blue swimming pool, everyone lay in the shade of the weeping willow tree, looking at the blue pool of water, but their minds flew to the sea thousands of miles away.

"It's the same feeling I felt when I was at the beach!" Yu Chi Baolin said with a look of nostalgia, and several people hated it.

"One day, I must go to the beach too!" Cheng Chumo gritted his teeth and said.

"Legend has it that the sea is divided into four seas, southeast, northwest and northwest, which are ruled by the dragon kings of the four seas, and in the sea, there are three immortal islands of Penglai Abbot Yingzhou, each sea is boundless and can never reach the end," Qin Huaiyu revered.

"As for the immortals, that's a Taoist thing, but according to the Mo family's guess, of course, there are edges, but we haven't been there, and if I grow up in the future, I will build the world's largest ship to conquer the real sea." Merton said excitedly.