Doomsday: Humanity shrinks 100 times

Chapter 88 Zhang Xinyue's Superpowers
Lu Yuning threw the difficult question to Zhang Xinyue, and it was obvious that this question was a bit stumped for her.

It’s not that we can’t think of other designs, but if we bring in a miniature perspective, many simple machines will become ineffective.

Seeing her frowning and thinking for a long time without saying anything, Lu Yuning probably felt a little embarrassed, so he quickly said, "It's okay, you don't have to do this, manual work is not a big problem."

"Well, it's a bit difficult."

Lu Yuning nodded and prepared to make a manual water tank.

"I did think of a way, but" Zhang Xinyue seemed a little hesitant.

"Hmm?" Lu Yunning immediately became interested.

"I thought of some devices, whether it was through pressure or buoyancy, none of them worked. The main problem was the lack of water. The last thing I could think of was to control the water volume through a connector. However, this would require two water tanks. One water storage tank should be larger. The large tank controls the water storage through a buoyancy valve, and then a small tank is made to form a connecting vessel. The small tank is used for flushing, and the water volume mainly depends on its volume." Zhang Xinyue briefly explained the principle.
Lu Yuning seemed to understand what he said, and after thinking for a while, he said, "I think I understand. However, it seems that the toilet will need to store a lot of water."

Zhang Xinyue nodded.

"In that case... I think it's better to forget it. The price for this automatic water tank is a bit too high." Lu Yuning thought for a long time and finally shook his head.

This idea should be feasible, but the principle is actually to increase the amount of water to realize the mechanical device. It is not complicated to implement, and the most important thing is that the value generated is not high.

In the end, everyone had to give up the idea of an automatic water tank.

However, a manual water tank still needs to be made, which is relatively simple. You just need to make a flush valve and a water inlet valve.

Lu Yuning had already laid the water pipe in advance.

After a busy period, although it was not perfect in the end, we finally managed to successfully connect the bathroom to the water supply system.

After the bathroom is successfully connected, the entire water system can be considered to be officially operational.

The next step is to build all the indoor facilities.

Everything that needs water supply is connected to the water system.

Under Zhang Xinyue's strong suggestion, the bathroom naturally became the next facility.

The construction of the bathroom is mainly about moisture-proofing, and the material of the floor needs to be selected carefully.

It’s called a bathroom, but in fact it just means a bathtub because showering consumes too much water.

This is exactly the opposite of what happens in reality.

Under normal circumstances, bathtubs consume more water, but if you want to achieve the shower effect, a certain amount of water and pressure are required.

When the pressure is sufficient, the water flow rate will increase linearly. In this way, from their current perspective, the water flow rate is actually amazing.

For example, if you spray the water in the bathtub in the manner of a shower, it will be used up in about 1 to 2 seconds.

The concept is a bit like starting a fire in a miniature world.

Unless they increase the water level in the tank, the problem remains: the labor is not proportional to the harvest.

Lu Yuning originally wanted to use plastic for the bathtub, but Zhang Xinyue reminded him that it would need hot water later and ordinary plastic could not withstand high temperatures.

So we finally decided to use stone materials so there would be no worries about corrosion and leakage.

The overall process is not difficult, just connect a water outlet pipe.

The drain outlet is filtered and treated before being connected to the sewage system.

The overall decoration material of the bathroom can also be made of stone slabs, which are both beautiful and moisture-proof.

The bathroom is built right next to the toilet, and a space is expanded horizontally on the basis of the original toilet, which is similar to a home toilet.

After the bathroom was finally completed, Zhang Xinyue's eyes lit up and she expressed her satisfaction.

She had been thinking about this bathing facility for who knows how long, and she was naturally the first to try it out after it was made.

However, this water system currently cannot be connected to hot water because the pipes are made of plastic, which will burn directly if the water temperature is too high. If you want to connect to hot water, you must upgrade the pipes, probably to metal.

There is obviously no way to solve this problem at the moment, so if you want to take a bath with hot water, you still have to boil some water.

This is also something they plan to upgrade later, and they are considering building a hot water reservoir to cover domestic water.

The key point is Zhang Qian's special ability. Because she can control the intensity of heat release, she has the ability to keep warm.

This water can later be used to build the shelter's cold-proof system.

These are all some planning work for the future, but there is no rush to keep warm for the time being.

Their city has officially entered a period of extremely cold weather, which will last for about two months.

There are other things to do before that, and the current priority is the concealment and protection of the shelter.

Also, the mutants nearby must be dealt with as soon as possible. If they are allowed to grow, who knows what uncontrollable situations may arise.

After the bathroom was built, Zhang Xinyue quickly boiled some hot water and then couldn't wait to take a bath.

Zhang Qian and Xu Lele lined up at the bathroom door. For a while, the flow of customers in this bathroom was quite large.
It seems that everyone has been looking forward to taking a bath for a long time.

Lu Yuning also has to build a bathroom in the boys' dormitory.

"Ah, comfortable~"

Zhang Xinyue lay in the bathtub, the warm water soaking her whole body, feeling extremely relaxed.

It seemed as if all the fatigue since the end of the world had been washed away.

"Well, it would be nice if there was soap. I'll think of a way to do this."

"I also need to see if I can make a bath towel, and the materials are a bit troublesome."

"And towels, washcloths, and a device for hanging things."

"All of these are needed. I'll have to discuss this with Yu Ning and ask for her opinions later."

"Ah, so happy."

Zhang Xinyue murmured to herself while taking a bath, her sense of happiness reaching its maximum.

She closed her eyes and lay quietly in the bathtub, feeling as if her spirit was overflowing.

The whole world became quiet, and my perspective seemed to have risen.

She could clearly see herself in the bathroom, and this feeling seemed to be related to her special ability.

Her ability allows her to mentally map nearby objects with sounds and create a rough picture of them.

Objects that cannot make a sound cannot be perceived.

However, Zhang Xinyue had a strange feeling at this moment, as if the structure of the entire bathroom was presented in her mind in a three-dimensional way.

She was a little surprised, and following this feeling, she focused a little more.

Then she was somewhat surprised to find that the entire structure of the shelter seemed to appear in her mind.

Even Zhang Qian and Xu Lele who were waiting outside, Lu Yuning who was busy a little further away, and Zou Yunxin and Wu Xiao who were joining in the fun, all appeared in his mind at this moment.

"What is this?" Zhang Xinyue opened her eyes with an expression of disbelief.

　Thanks to Duaisuyan, 2629230, Aipoxiao, and Fanhualuojinziguiti for their monthly tickets.

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(End of this chapter)