Doomsday Bunker Upgrade Chapter 176: Make a water purifier

Chen Xin doesn't plan to dismantle the equipment of his shelter, so he must collect additional resources or make his own parts to modify the vehicle.

Fortunately, he has a workbench. He can process some parts of the materials needed to transform the vehicle. What he really needs to exchange and collect are some raw materials, and it is cumbersome to process by himself, and it is more convenient to exchange and collect. s material.

Among them, such as auto parts, cold-proof materials, and various steel materials required for vehicle modification, Chen Xin must be obtained through exchange with Li Yulong and the SWAT team.

But like some other materials such as shock springs, track parts, water circulation devices, etc., he can completely make them himself, and the consumption is nothing more than a small amount of survival points and raw materials.

However, most of the raw materials in Chen Xin's reserves were prepared for the planned overall upgrade of the shelter. Most of them were building materials such as cement and steel bars, and the rest were mostly things like heat insulation boards.

There isn't much high-performance steel like shock springs and track parts, just a few pieces of steel intended to reinforce the structure of the shelter.

"So I have to collect a batch of steel!" Looking at the list of materials, Chen Xin sighed helplessly.

Although there is a system, even the simplest metal materials can be used as raw materials, even not metal materials, but considering the cost and investment issues, as well as the subsequent use, Chen Xin thinks it is more appropriate to get a batch of steel .

Fortunately, in addition to these parts that require metal materials to process, things like water circulation devices do not need to consume a lot of metal materials. Although metal materials are better, they can also be replaced by other materials. .

So Chen Xin decided to use the existing materials to make everything that can be done first, and see if he can make some lower-level substitutes if he can't do it, and then use survival point upgrades to make up for it.

Although the system upgrade function is powerful, the consumption of survival points is not a small amount. Although he currently has nearly five-digit survival points, according to the consumption listed in the list, if Chen Xinhao To use the system functions without hesitation to make these things, he would use up at least one-fifth of the survival points in his hand.

So saving is still necessary.

It is not too difficult to make a water circulation device, and it does not need to consume too many materials. The most important thing is the recovery of waste water and sewage, and the recycling after purification treatment.

There is no need to worry about the recovery of waste water and sewage. When the water circulation device is installed on the vehicle, the pipeline in the water area can complete the sewage recovery. The real focus is purification treatment.

Simple sewage purification treatment is not complicated, only need to use activated carbon, sand and other materials to sediment and filter the sewage.

However, such a simple filtration effect is not good, and the chemical pollutants and heavy metal ions that may remain in the sewage will not be separated due to such a simple filtration.

Chen Xin purchased portable filters necessary for survival in the wild, and disassembled the structure for research.

In addition to the basic sand and activated carbon filtration, the most important thing is the filter membrane, which can effectively filter bacteria and other harmful substances in the water, so that the original sewage can be restored to a drinkable level.

Chen Xin used this portable water purification filter when he was playing in the wild before. When it was difficult to find a clean water source or when the conditions for boiling water were unable to boil water for drinking, this filter It is indeed a very convenient device for easy access to clean drinking water.

This kind of filter is used as a water purification component of a water circulation device. It is not overkill, but it is more than enough.

However, Chen Xin did not directly use his portable filter as a component to make a water circulation device, nor did he disassemble it to obtain parts, but planned to make one by himself.

Saw a piece of PVC pipe as the main body, then cut some more pipes as auxiliary materials, transform the structure with the system processing function, turn the pipes used as auxiliary materials into end caps, and the rest is put into the main pipe Fill the filter material.

The material of the filter membrane is special, and Chen Xin does not have it. Although it is not impossible to do it with the help of the system function, Chen Xin does not need to be so troublesome.

Since you want to borrow system functions, why not upgrade directly?

After filling the main body of the filter with sand and charcoal, Chen Xin compared the consumption needed to make the filter membrane and upgrade the filter directly, and decided to upgrade directly.

After all, this is just a small thing. It takes 10 survival points to make a filter yourself, but to upgrade it directly only needs to add a little material and only consume 15 survival points. In comparison, this survival point is Chen. New is still affordable.

After upgrading the self-made filter to the same level as the purchased portable filter, Chen Xin used this filter as a water purification component and assembled it into the same self-made water circulation device.

In this way, the water circulation device, which is one of the important components of vehicle transformation, is completed. ~IndoMTL.com~ ticked the checklist. Chen Xin looked at the various materials and parts listed on the list. Thinking about what to do next.

But just as he was thinking, his radio suddenly rang.

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At this time, outside Chen Xin's shelter, a police armored vehicle was parked in front of his house.

"Chen Xin said he'll open the door right away." In the car, a SWAT team member put down the walkie-talkie in his hand and reported to Li Tou and a man who looked like an official without a police uniform sitting beside him.

Both of them nodded, and didn't say much about it.

Previous action Although Li Tou's team was injured and hospitalized because of the previous action, several other team members were also injured and treated in the hospital, but even if there is a lack of manpower, the whole city is mobilized to conduct a large-scale platoon. They were still sent out to work with the staff of the joint investigation team to conduct unofficial shelter mapping work.

“There is a member of the public who cooperates with our SWAT team. He mainly provides our SWAT team with fresh vegetables in exchange for some survival supplies. We have come to investigate before, and there is no suspicion.” Li Tou He explained the situation to the person next to him who looked like an official, but he was obviously helping Chen Xin to say good things to avoid Chen Xin's possibility of being suspected.

“The work of the comrades of the Municipal Bureau is of course trustworthy, but the joint investigation team decided to conduct a second inspection, and it is safer to check again.” The official nodded slightly, but did not say anything to Li Touhua Obvious reaction.

But looking at his expression, Li Tou also understands that he has listened to his words.

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