In fact, Tang En was too comprehensive. He was a lazy person, so he wanted to get it done in one step, but in fact, the construction of a city was impossible to get it done in one step. Every time there was a technological innovation, there would be a rebuilding process.

For example, although he has taken the discharge of domestic sewage into it, in fact, Ellington... No, even in the entire Plandal, there has not been any tap water project. People's water is generally taken directly from wells or rivers. Therefore, the amount of domestic sewage is discharged very small, and the natural environment here can completely realize a normal purification cycle.

Therefore, Tang En's habit of living on earth has caused him to be very uncomfortable now. Fortunately, his identity is the lord, so it is not his turn to fetch water...

Tang En also knew this very well, but he was already considering the tap water project, so he planned the underground drainage system in advance to avoid any trouble at that time.

Moreover, the underground drainage system has one advantage, that is, it saves labor. Since it is an underground project, Tang En can do it himself and use soil magic to solve the problem of drainage pipes, which will not attract the attention of Ellington residents.

While recalling the impressions on the earth and drawing planning maps, the night passed without realizing it.

"This is the planning diagram you drew!?"

Fiona saw the planning map that Tang En placed in front of her and jumped up wide. She took a brief look at the planning map and didn't know how to describe her feelings.

Now she only has one feeling, that is perfection!

That's right, this Ellington town planning map by Donn can only be described in perfection. Whether it is markets, neighborhoods, roads, living areas, industrial areas, fire prevention, garbage disposal, etc., all of them are considered. If you build according to his plan, you can imagine what a clean and tidy city this will be!

What shocked Fiona the most was the underground drainage system specially marked on the planning map. Now in the Imperial Capital, some craftsmen have proposed this idea, but they have not been completely realized because the project is very large. Unless the magician is asked to take action, the magicians are all arrogant, so how can they be a craftsman who digs a pit?

In addition, the royal family wanted to increase revenue and reduce expenditure and refused to spend too much money, so this project has not been put on the agenda.

However, Fiona did not expect that Tang En directly proposed a complete underground drainage system design, which not only gave a clear and clear design to every household's sewage discharge method, but also had a solution to the final sewage treatment method.

The craftsman who proposed the underground drainage system at the beginning troubled him the biggest problem was how to deal with the sewage discharged. Since the city is built based on water, and residents have to use river water and groundwater, sewage must never be discharged into the river. It is precisely because this has not been resolved that the royal family was unable to make up their minds to engage in projects.

Did Tang En solve this problem?

"Eventually sewage drains into the sewage pits of the paper mill? And what?"

Fiona frowned: "You haven't told me how the sewage discharged from the paper mill is processed. If it is discharged into the river and finally flows into the sea, it may not take long before the Naga tribe will come to the door."

"Didn't I tell you?"

Tang En was stunned: "I solidified a mini portal in that sewage pool and directly discharged the sewage through the portal."

Fiona was also stunned: "Portway?"

"yes……"

Before Tang En finished speaking, Fiona suddenly exclaimed and looked at Tang En with shock: "What you are talking about is... a portal!? What you put in the sewage pool that day was a teleportation array!?"

Tang En patiently explained: "It is not a teleportation array, but a substrate that solidifies the portal spell, which is different from the teleportation array."

The teleportation array is connected to two fixed locations, and the space channel is very stable and can transport a large number of goods and living things. The portal spell is much more fragile and cannot be opened for a long time. If the transportation volume is too large, it will collapse directly.

Fiona was disappointed when she learned that it was not a teleportation array. Before the Chaos Invasion War, Prandal's teleportation array layout method had been lost. The only few remaining teleportation arrays were also damaged in the two Chaos Invasion Wars. Now Prandal has no teleportation arrays that can work at all. It is said that the Star Moon Tower Secret Law Association has been working hard in recent years to study the remains of the teleportation array. It is a pity that it has not been completed.

If Tang En even had the technology of teleportation array, Fiona might really have doubted whether he had arrived as a god.

Fiona asked casually: "But the portal must also have a target. Where did you discharge all the sewage? It won't cause any trouble, right?"

"Well, there is the fire element world on the other side of the portal. The sewage evaporated when it enters, so it shouldn't be-"

"What!"

Fiona exclaimed in dismay, and sat down on the ground with her butt.

Tang En pulled her up with a puzzled look on his face: "What's wrong?"

"You asked me what's wrong?"

Fiona said furiously: "You discharged sewage into the fire element world!? Are you crazy? Are you trying to provoke a plane war??"

Although I have never learned magic knowledge, Fiona also knows that fire element is a water-repellent creature, and throwing dirty water into their world is undoubtedly provoking those irritable fire element creatures!

What if they can't bear it, they will come directly through the portal and kill...

The picture was so beautiful that Fiona could not imagine!

"Don't worry, I won't."

Tang En shrugged and said indifferently: "I checked when I opened the portal. It was a deserted area of ​​the Fire Element Realm, and there were no fire element creatures."

"It's best if the fire elemental creature really invades Plandal, we will be Plandal's sinners..."

The expression on Fiona's face was even worse than crying. She really didn't expect that she would come up with such a bold lord and quietly make such a fantastic thing...

"Don't worry, although fire element creatures are very irritable and water-repellent, the fire element world is so big that they are not as good as invading Plandal, so they are more willing to live in another place than they have so much effort to invade Plandal."

Tang En spread his hands and said, "If it were you, would you stay there and get wet in the rain when it rains?"

"Of course not."

"So, don't worry about those."

"But I always feel that your metaphor is a bit strange..."

"Don't worry, the Chamber of Commerce has been officially established. Now your focus is to urge the steel mill to complete and put into production as soon as possible. In addition, we are starting to plan and reconstruction work in Ellington. If any family is unwilling to relocate, tell me I will do their work."

Fiona sighed, sat back on the stool and said, "Don't worry, no one will not cooperate, after all, you are the lord."

Tang En forgot that the lord had absolute right to dispose of the lords. He was still thinking about whether to give some reconstruction subsidies to those residents. He gave up after Fiona said this.

If he had expressed his subsidy ideas, Fiona would probably be furious again.

"but……"

Fiona picked up the planning map again, frowned and looked at it: "I see that your planning map seems to be not complete yet. The underground drainage system you made seems to have a supporting facility, why didn't it be drawn?"

"Oh, that's a tap water project."

Tang En casually said: "This has to wait before construction can be started, and this condition is not met yet."

“Tap water project?”

Fiona became interested: "What kind of project is it? Can you tell me?"

"Of course, you are my CEO."

Tang En smiled and briefly introduced the concept of tap water engineering to Fiona.

After listening to Tang En's introduction, Fiona became excited again.

"Tape water project! Oh my God! Lord Lord! Are you really a god coming!? How could you have such a genius idea!?"

Fiona just thought about life without leaving home, and just twisting the switch and water flowed out, and her whole body trembled excitedly. If it could really be as Tang En said, how convenient would Ellington's life in the future be!

Residents here no longer have to go to the riverside or line up by the well to fetch water. How much valuable time can they save every day to invest in construction?

"Of course, I've always been very talented."

Tang En shamelessly admitted Fiona's praise and smiled: "Since the tap water pipes require copper, there is no copper mine in Ellington now, so we can only put it down for the time being."

Most tap water pipes on the earth use stainless steel or PVC pipes. Although ordinary steel or cast iron pipes are also possible, they are prone to rust. Tang En doesn’t know how to make PVC material, and he doesn’t think that the stainless steel is coated with a layer of metal, so he can’t make it, so he can only give up.

In addition to these, there is another very good option, that is copper water pipe.

The inner wall of the copper water pipe is smooth, and it will not rust or scale after long-term use. It can avoid secondary pollution of water, reduce heat energy loss, inhibit bacterial growth in the pipeline, and has a stronger advantage over other water pipes.

The reason why copper pipes are not used on earth is that copper is expensive and expensive is high. However, due to the special circumstances of Plandal, copper is a very cheap metal resource, so using copper pipes is the best choice for Tangen.

But there is one biggest problem. No copper mines have been found in Ellington.

Even if Tangen wants to buy copper ore, he doesn't have that condition now, because Ellington doesn't have that wealth to import copper ore now.

So after comprehensive consideration, the tap water project can only be temporarily put on the spot, and then find a way to solve this problem after the reconstruction project in Ellington is put on the agenda.

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PS: I just came back from my home today, I’m sorry to update it a little late. Sanjiang tickets are quick enough to add updates, so don’t forget to get the vote and vote.
Chapter completed!