Doomsday: Humanity shrinks 100 times

Chapter 35 Water Filter Upgrade

Lu Yuning spoke sincerely as he explained Zou Yunxin's special abilities. Under Xu Qi's intense gaze, he also introduced Wu Xiao's special abilities.

"Your abilities are all so powerful." Xu Qi commented.

"It's actually okay. One ability by itself doesn't do much, but when combined, it creates a lot of unexpected effects." Lu Yuning summarized.

"Wu Xiao's special ability is space storage? You guys are so good at bluffing. People in the pavilion really think he is a great immortal." Xu Qi said helplessly.

"Hahaha, my acting is pretty good, right?" Wu Xiao laughed out loud after hearing this.

Xu Qi held his forehead.

"But I'll have to trouble you again later. Getting water is a problem for us now. I guess you, Old Wu, will have to go to the river a few more times. I'll get a bigger container later." Lu Yuning took over the topic.

Xu Qi nodded.

The three of them returned to the square with a full load, and everyone else had woken up.

Since Lu Yuning still needed to modify the water filter, the water fetching task had to be handed over to Wu Xiao. To be on the safe side, Zhang Xinyue also went along.

Wu Xiao first took out all the materials in the space, and then stuffed a large container made by Lu Yuning into it.

Although it is called large, it is actually only about twice their size, which happens to be the maximum volume that Wu Xiao's space can currently accommodate.

Lu Yuning made some modifications to the remaining two slightly smaller ones and finally hung them on Xiao Jin, the coolie rat.

I'll definitely help you make your nest warmer when I have time in the future!
Lu Yuning looked at the chipmunk with a container hanging around its neck, which looked a little funny, and said secretly in her heart.

Of course, you need time, he added silently in his heart.

The container is ready, and the task of fetching water is handed over to Wu Xiao and the other two. Lu Yuning needs to get the water purifier out quickly.

Lu Yuning already has ideas about the design of the new water filter.

The main problem with the one I made before was the material. The water filter was made of grass leaves, which was easy to rot and could not withstand pressure.

So they all had to be replaced with plastic, and last time due to capacity constraints, the water filter could only be made into a funnel shape and connected to the bottom of the container.

The problem this causes is that some quartz sand will fall down and block the water filter outlet, which naturally slows down the efficiency a lot.

Another problem is that the water filter is integrated with the container, so it is not easy to put too much water in it at one time, and you have to add water manually from time to time.

So Lu Yuning decided to separate the water filtration equipment and leave only an interface so that it can be disassembled at any time, and the container above can also be replaced with a larger one at any time.

The water filter is generally similar to the previous one, with two layers of quartz sand and gravel inside, one coarse and one fine. The main change is the addition of a U-shaped sand and gravel sedimentation tank in front of the water filter outlet to prevent the falling sand and gravel from clogging the water filter outlet.

The settled sand and gravel can also be cleaned regularly.

Then try to widen the diameter of the pipe as much as possible. However, the wider the diameter, the more sand and gravel can be placed, and the more water will be absorbed.

Moreover, more sand and gravel will flow through, which is not easy to handle, so just do it appropriately.

Lu Yuning spent almost two hours to finally put his idea into practice. Looking at the device in front of him, which was twice as large as himself, he nodded with satisfaction.

During this period, Xu Qi and his team ran back and forth almost five times, and the chipmunk was so tired that it lay on the ground. The three of them then stopped.

Lu Yuning had already made a giant container in advance to collect all the water, and put some things underneath to facilitate the collection of clean water.

The container was about one-third the size of a mineral water bottle, also made of plastic, and was already nearly full of water. Lu Yuning had already left a drain hole and a simple valve.

Although closing the valve does not ensure complete water leakage, it will be fine as long as the water filtration device is connected.

The valve is also very simple. Anyone who has studied the principle of faucets should know that you just need to make a spherical object, dig a hole in the middle, put it in the pipe, and control the position of the hole in the sphere by rotating it.

However, the sealing issue took Lu Yuning some time.

Lu Yuning directly connected the water filter, checked it, and then opened the valve.

After a while, crystal clear water droplets flowed from the water filter into the water boiling container, and the overall filtration speed was no longer comparable.

"Wow, what a sophisticated device, with a valve? The water is so clean, is it drinkable?" Xu Qi looked at the filtration system in front of him with curiosity, and reached out to take the water to drink.

Zhang Xinyue quickly stopped her: "Not yet, it still needs to be boiled."

"Oh, we can't wait to drink river water every day, but you guys still have to filter it." Xu Qi became more and more frustrated as he spoke.

The living conditions over there in the pavilion are completely different from those here in the tree hole.

Xu Qi naturally sighed. She felt more and more regretful that she didn't keep Lu Yuning and the others, and she hated Ma Zhiqiang even more in her heart.

The people at the tree hole were not surprised, after all, Lu Yuning even had the idea of making a steam water pump.

There is nothing much that can be improved on the water-boiling device for now, except to increase its capacity a bit. However, if it is too big and complicated, it will be difficult to carry.

Zou Yunxin mainly needs sunlight to convert energy, and may need to move from time to time.

But there is good news. His ability has improved a lot. Now the time to increase the temperature of the aluminum sheet is obviously much faster and the heat is also higher.

Even if it is not in direct sunlight, it can still convert some heat into heat.

It is obvious that his efficiency in converting energy has improved a lot.

The rest of the work can be left to Zou Yunxin and the others. Once the water is almost filtered, they can start boiling water.

Lu Yuning did not waste this time and started digging the tree hole again.

He had dug out an area 3cm long, 5cm wide, and 2.5cm high at the entrance of the entire tree trunk shelter, which was basically enough.

He didn't just dig out a rectangular area, but dug a distance inside first before starting to expand the space.

In this way, the layer left on the outside plays a load-bearing role, and the bark is thick, which can effectively keep out the cold and keep warm.

Although the tree is thick enough and there is no need to worry about digging through it, it still requires careful planning.

I just don’t know if the tree will dry up due to lack of nutrients after he dug it like this. Lu Yuning now feels like a hardworking woodworm.

The tree hole looks very wide overall.

But the main problem is that the light is too dim and it is a bit humid, so you need to get the windowsill out first to maintain light transmittance.

As for the humidity problem, let's see if Zou Yunxin can come in to dry it out, but before that, the windows must be fixed first. As for the material of the windows, they are naturally plastic.

　I feel like most people who read this book are struggling with a book shortage, otherwise they would be watching me build a faucet...

　　
　
(End of this chapter)