Start the Deserted Island and Pick Up Hinata

　　She touched her belly happily: "It turns out that it is you who is guarding my sister!"

　　"Sister? Shouldn't you be mother?"

　　"Mom is too old-fashioned, I feel like I should call my sister closer!"

　　……

　　Seeing that Hinata's expression recovered a little, the three melon-eating girls were even more shocked!

　　"This kind of nonsense..."

　　"Can you persuade it?"

　　"Chu Yan, what kind of ecstasy did you use?"

　　……

　　Chu Yan looked at Hinata holding her calf, shy and aggrieved!

　　Take off your pants at once!

　　……

　　"Chu Yan, what is he going to do?"

　　"My God, in broad daylight, he actually wants to..."

　　"Should we stop it!"

　　……

　　In the next scene, with no effort, two trouser legs fell off from the knee!

　　"Your pants are ruined!"

　　Chu Yan smiled: "I changed my trousers into shorts. You can cut off the two trouser legs, and you can almost make a short skirt!"

　　"Ah?" Hinata blushed, tears of emotion swirling in her eyes!

　　The other three girls were stunned!

　　"Eh!"

　　"Almost misunderstood Chu Yan again!"

　　"The first second he looked like a wretched satyr, and the next second he was an unparalleled warm man!"

　　"Looking at it this way, Chu Yan is also very attractive!"

　　Chu Yan smiled and said, "It doesn't matter whether you have a young Tianguo or an unknown physique, one thing can't be endlessly tangled, and the days have to move forward, don't you?"

　　Several girls nodded: "That's right!"

　　Chu Yan pointed to the dead pig: "Next, let's discuss how to do this thing!"

　　Ino raised his hand and said, "First, cook a big pot with potatoes. I haven't eaten the boiled food for several days, and the greedy worms in my stomach are starting to growl!"

　　Xiao Ying sneered: "Hey, the three deer pigs and butterflies, are you the only one who eats the beasts that represent the family?!"

　　Ino retorted: "Sakura, you have Sakura in your name, don't you eat cherries?"

　　……

　　Chu Yan divided the pork, the elbow, the pig head, (Li's Zhao) the front trough and the back, the five flowers and three layers, and the pig water were all prepared and placed in the stone ice cellar!

　　Then take out a big elbow weighing more than ten pounds, cut it into pieces, wash it with sea water, soak it in fresh water and give it to Hina!

　　Hinata cut up twenty or thirty potatoes, first refined the lard, and finally put the pork and potato pieces in it!

　　Get some more kelp, fuel consumption and freshness!

　　It was boiled for more than two hours, and the pork was rotten by pigs!

　　The tangy aroma rushed out, people were drooling with greed, and the little monkey was even more greedy!

　　In this way, five people stewed food in their own iron pot for the first time on a desert island!

　　A full pot of food was eaten cleanly by five people!

　　Unexpectedly, the food made by the pot made by myself is more delicious!

　　Is pig delicious?

　　The cooks are superb.

　　Or is it because of the unusual structure of this pot? .

Chapter 170

　　With a wok!

　　Although it looks a bit different from the outside, it is really much better than iron milk powder cans!

　　Cook whatever you want!

　　Next, consider building some more iron!

　　Hammers, pliers, axes, machetes, hoes, shovels, saws, the more the better!

　　With these tools, Chu Yan's work efficiency will have a qualitative leap!

　　And to build these things, you have to find more ores and prepare more charcoal and laterite!

　　It's a long job, and it needs to be done bit by bit!

　　And before that, the fresh water problem in the camp had a new situation!

　　Due to the use of it for a period of time, more than half of the water in the two pools has been used up, which is nothing.

　　Fresh water was originally reserved for use.

　　The problem that can then be faced is that the water quality is getting worse and worse!

　　After all, it is Chen Shui, and there is dust falling in it every day, green moss grows on the walls, and microorganisms will slowly grow!

　　Although this kind of water is boiled and still drinkable, it will have a little smell of rotten leaves, which will affect the taste.

　　And it's only been more than a month, if you wait another month, these two pools of water will properly become stagnant water!

　　In contrast, Chu Yan found a problem!

　　510 was originally reserved for drinking in the pool, but the water became more and more turbid, while the fresh water pool where girls bathed and watered the ground was covered with moss, but the water was very clear!

　　Twist it with your hands and compare it, and sure enough, the water in the bath is cleaner!

　　The girls also discovered this problem, and Xiao Ying said proudly: "Our girls are clean, and the water used is getting clearer and clearer!"

　　Chu Yan meditated, consulted the manual in his mind, and understood the principle!

　　"The water is clear because of the high bacterial content!"

　　The four girls were shocked!

　　Ino worried: "Huh? Does that mean we have been bathing in the bacteria pool?"

　　Chu Yan smiled: "Don't worry about this, because the bacteria I am talking about are not harmful bacteria, but nitrifying bacteria!"

　　"Nitrifying bacteria?"

　　"A type of aerobic bacteria that exists widely in nature, it has a powerful effect of purifying water! More importantly, it is not harmful to the body!!"

　　"Bacterial water purification?"

　　Sakura thought for a while: "This is the first time I've heard of it!"

　　"High-end fish farmers all know how to cultivate nitrifying bacteria! It can be said that if the bacteria are cultivated, whoever is better will be better, and if the water is cultivated, the fish will naturally be better!"

　　"You know how to raise fish too?"

　　"Understood!"

　　Tian Tian nodded: "I admire... But why is it in one pool and not in the other?"

　　Chu Yan squatted beside the two pools:

　　"Our drinking pool, the pool water is left standing for a long time, the oxygen capacity is low, and it is difficult for nitrifying bacteria to survive!

　　In the swimming pool, because you often play in the water, the water flows frequently, and a small amount of skin scraps provides food for the nitrifying bacteria, so the nitrifying bacteria are relatively active! "

　　Hinata said, "That's why the swimming pool looks cleaner than the drinking pool!"

　　"That's right!"

　　Sakura said, "So, is it because of us?"

　　"you can say it this way!"

　　"So...are we going to drink pool water in the future?"

　　Chu Yan smiled: "Although it may be difficult for you to say this, but from a rational point of view, it should indeed be the case!!"

　　"No way..."

　　Chu Yan pondered for a while: "However, this gives me a hint!"

　　"What a hint!"

　　"Through physical filtration and bamboo charcoal adsorption, nitrifying bacteria groups are established to make a complete ecological water purification system!"

　　Sakura said, "It sounds more complicated than filtering tap water!"

　　Chu Yan snorted: "The water purified in this way is much healthier than tap water!

　　The most high-end fish farmers will raise air tanks, the water is so clean that no impurities can be seen, and the fish are like swimming in the air! "

　　Hinata said, "Sounds amazing!"

　　Tian Tian pouted: "I always feel that it is awkward to use bacteria to purify water!"

　　Ino said: "Obviously it can be filtered and precipitated!"

　　Hinata said: "I also think filtering is better!"

　　"Yes, this is the correct way!"

　　Xiao Ying nodded and said, "Otherwise, let's have a big competition!"

　　Ino agreed: "Yes, one group of boys, one group of girls..."