Thinking of the scene where he explained the toilet to the people in the territory at the beginning, Gray sighed slightly, and did not mention any punishment. Now let's teach this guy what the toilet is.

This also has its own problems. I thought that as long as I invented it, it would definitely be known to everyone and imitated by the people of the whole country, but the fact is not the case. Until now, only people in his original small village remember and use it.

Other places, except for a few businessmen, no one knows the word toilet, let alone imitate it.

They are used to solving problems at will, and letting them solve problems in a fixed place is as if they are against their nature.

After a few seconds of silence, Gray kicked the rock bulge in front of him with his toes, "Come with me, I'll tell you what the toilet is."

After saying that, he did not choose to go past the construction site again, but instead walked around the edge of the cliff.

Walking by the cliff, Gray looked at the sea five or six meters below, thinking that maybe he could make a stone staircase here, and when he was interested, he could go down to swim or fish.

But there is no hurry now, so it is not difficult to hit a stone staircase. At worst, you can take the sword in the lake and start with it. With the sharpness of the sword in the lake, you should be able to cut out a beautiful stone staircase soon.

I quickly walked around the air outlet on the construction site and could not smell the pungent smell.

"Get a few shovels and bring a wooden board." Gray said to the soldiers behind him.

The two soldiers nodded and went to the construction site to find shovels and wooden boards.

"Tell me, what problems are you facing." They took some time to come back, and Gray didn't plan to just do it and waited to waste time. He sat down on a yellow grass.

"You know, the adhesives we used before were made of the juice of the bonding tree and the ore slag, but the adhesives you proposed to make with mixed materials such as fired limestone, clay and iron ore are indeed better than before. We have begun to make a large number of this adhesive, which can also become an industry in the royal family in the future, and..."

Frado sat carefully at a distance from Grey, slowly reporting on the progress of the days, and finally put forward a suggestion that was very beneficial to the royal family.

But he didn't need to say this. Gray had thought of it for a long time, but he had never thought about developing it into an industry.

Because there is really a shortage of iron ore here, it does not have so many iron ore to make cement. Apart from his own castle, even the walls of the new royal city, they still need to use the previous adhesive, so other nobles should not think about it.

In fact, the previous adhesives were not much different from cement, probably the difference between nine and ten. This is mainly because of a bonding tree that is very similar to the previous rubber trees. This tree can produce a kind of mucus, which will quickly air-dry after adding other materials, and become a natural adhesive.

"Talk about the problem directly. I'm too lazy to care about the preparation of the castle construction. Anyway, if there is a problem with the castle in the future, I'll find you." Grey interrupted his statement and said directly.

Frado stopped the topic with a wry smile, pinched a weed and slashed unconsciously in his palm, and thought for a while and said, "There are not many problems, I can probably solve all small problems, but we have also found the right proportion of the method of mixing gravel and cement into concrete. However, gravel is not enough and it is difficult to make a large amount of it."

When Gray heard this, he understood what was going on. The gravel here basically relies on human power to smash it with hammers. In the worlds he has been to, the gravel he needs is basically broken with machines.

Compared with machines, the gap between manpower is naturally huge.

He has no choice but to do this at the moment. He can't do it yet. He has to find some material to replace it first. It's impossible to make all the gravel manually. How much manpower will it cost?

Or if I don’t have a rock crusher, can I develop one by myself?

Gray thought for a while, took out a dagger and started drawing on the ground.

His idea was to cast a huge piece of iron, then hang it up with a machine, and then smash it hard. In this way, the stone should be smashed. It will be easier to get the fine stones. It can be regarded as creating a simple stone crusher.

Gray first drew a machine that was lifted with pulleys, and then shook his head. Such a machine is too complicated and can't be made with current technology in a short time.

Then he thought about it and remembered the tool he used to pound peppers with his grandmother when he was a child in his previous life. He used the principle of leverage. He could pound the dried peppers on one end with his feet into chili powder.

He forgot what this tool is called, but the principle is very simple.

He drew a bracket on the ground, and a huge wooden pole was placed on it. A huge piece of iron fell on one end and a rope on the other end. People could pull the rope, and a few people could easily pull the big iron block up and then loosen it immediately. The big iron block could hit the stone below.

"This is feasible." Gray thought about it in his mind, feeling that even if there is a difficulty, the difficulty will not be too high, and the feasibility is very high.

The soldiers came back with shovels and wooden boards at this time. Gray did not rush to ask them to dig a pit to build a toilet, but picked up the shovels and wooden boards and explained the principle of leverage to Frado.

Grey dug a shovel with an iron shovel, then placed it on a horizontal wooden board, changing the proportions at both ends. He did not say anything about the leverage principle, but just told him how to save more effort.

Frado was not stupid. Combined with Gray's explanation, he quickly understood the function of the tool Gray drew, and immediately flattered him again.

"Okay, the gravel problem has been solved, so let's talk about the toilet problem."

Gray got up from the ground, directed two soldiers to dig a hole in the ground, then put the wooden boards on it, and a simple toilet was ready.

"Of course, the real toilet needs to be dug deeper and larger, so that everyone can be in the toilet, so that the entire construction site will not be so smelly. You can also block it with wooden boards and put tiles and weeds on it, so that people will not be seen."

"His Majesty, the Great King, I am deeply impressed by your wisdom." Although I didn't understand it very well, this did not affect his flattery at all.

"Tell the workers the benefits of being convenient in the toilet, so that each of them must be convenient in the toilet. If they are disobedient, they will deduct his salary and increase his workload." Grey snorted coldly. He didn't want to smell shit and urine in the castle when he moved into the new castle in the future.

"Yes, I will definitely have someone build a toilet immediately and convey your will to them."

To solve the problem here, Gray was about to leave with his people. Suddenly he thought of something and looked back at Frado and said, "Isn't there a river not far away? The sand in the river can also be sieve with fishing nets, and fine sand can be obtained."

"Your Majesty, how can you get fine sand with the net so big?" Frado asked carefully.

Gray was stunned. This was because the technical level here was not enough, the fishing net mesh was not small, and the smallest one was as big as a thumb, so the sand sifted out was indeed not as fine sand.

"Then use the first method. I will ask them to try to weave a thinner net. If it can be done, I will give it to you first."

"His Majesty the King, I'm so stupid. I didn't expect that there wasn't a lot of fine sand on the beach?" Frado said with a happy face, praising his thoughts.

His Majesty the King's face turned cold. He knew that many tofu projects in the past were misused or used sea sand privately, and sea sand was not suitable for building buildings.

Telling him that sea sand is not suitable for construction, Frado is half-believing.

Gray directly warned Frado sternly, and said that if he knew he used Haisha, he would kill him directly. He was so scared that he vowed not to use Haisha, and then he left.
Chapter completed!