After living on a desert island, they all plotted evil against me.

"There's nothing we can do about this problem..." Qin Ruoshuang cleared her throat and whispered, "After all...it can't be reused."

If it is a menstrual belt stained with blood, it is not too uncomfortable to continue using it after washing it.

Nowadays, everyone uses two menstrual belts in turn. Just remember to wash them before giving them to the next person.

After all, it's your own blood, so you don't mind it too much when you get started.

But if it were replaced by something else, even if it was my own, I would be very concerned about getting started.

Gu Qingrou nodded slightly in approval.

Having experienced gastroenteritis, she is very knowledgeable about this.

On that crazy night, if Zhang Liu hadn't had paper in his hand, she probably would have had problems sitting down the next day.

After all, the edges of leaves are a bit too sharp.

But if you look for soft leaves, it's easy to penetrate directly...

As for Su Yan, after she heard the word "toilet", she lowered her head.

He looked extremely shy.

"It's best to change them selectively." Zhang Liu scratched his head and then said: "In my opinion, those white old man's beards actually feel good."

Qin Ruoshuang, Su Yan, and Gu Qingrou all looked at Zhang Liu with strange expressions on their faces.

Of course they have used white fluffy old man beards.

But the result is... terrible.

"To use water, you need to use it in advance!" Zhang Liu instantly understood the meaning of several people's eyes, and he quickly reminded him warmly: "It won't work without water, or you can use some flat stones instead, right?"

Section 163 # Volume [-] A stable food source is the first step in development: Chapter [-] The initial establishment of public toilets

As the expressions of the three girls in front of him gradually became resistant, Zhang Liu also keenly felt that what he said was a bit excessive.

But he also understood that long-term pain was better than short-term pain, and he would need to say these words to Anya and others later.

After clearing his throat, Zhang Liu continued: "In my opinion, using these to replace paper is something that will inevitably happen in the future, so it is better to plan in advance. After all, paper can be used to transmit information."

If it were before, he would not have valued the role of paper so much.

But after successfully transmitting information through paper twice, Zhang Liu has realized its importance.

Especially Qin Ruoyan's herbal support. If he didn't write down what kind of grass it was on the paper, how could he dare to use it casually.

However, looking at the embarrassed expressions of the three people in front of him, Zhang Liu also smiled and said: "You can keep the ones you have in your hands. What I mean is that the remaining four cannot be used indiscriminately."

Hearing his last words, Qin Ruoshuang, Gu Qingrou, and Su Yan all breathed a sigh of relief.

Just don't need to change it right away.

"I'll probably have to work outside all day today, so you don't have to wait for me for lunch."

After Zhang Liu finished speaking, he took Anya's half-polished metal bar into his hand, and tied it tightly with cloth strips and tree vines at the unexploded area, which was used as a grip.

Then he picked it up and swung it slightly, although it didn't have the right center of gravity as a fire hammer.

But it can barely be used as a tree-cutting tool.

And it might be more useful than a fire hammer.

Looking at the prototype of the blade that was polished by Anya until it was narrow at the front and wide at the back, Zhang Liu nodded with satisfaction.

Then he picked up a shorter dagger from the ground and held it. He waved to the three people in the cave and said goodbye.

If nothing else happens, Zhang Liu estimates that he won't come back until evening.

Even at noon, I had to work continuously.

However, finding a suitable place to build a toilet is actually not an easy task.

Ever since he saw Su Yan urinating and defecating at will, he had already been thinking about where to build a toilet.

The first place in Zhang Liu's mind was the seaside.

He planned to use the natural protruding characteristics of the reef to build a platform directly on two adjacent reefs, and then people could walk over and sit on it to satisfy their physiological needs.

The advantage of this method is that it does not require subsequent disposal of excrement.

And it is more convenient to build, after all, it saves the step of building a platform.

The idea is beautiful.

The reality is crueler.

The idea of ​​building a bathroom on the beach was quickly overturned by Zhang Liu himself.

Regardless of the embarrassing situation where the buttocks are easily dried quickly by the sea breeze at the beach.

The rainy season is coming soon, just in case there is a storm that day.

Anyone who dares to go out to the beach to use the restroom will be directly taught how to behave by the violent storm.

Not to mention the astonishing speed at which the salty and humid smell corroded the wood. He had no doubt that one day he or a girl would fall off halfway through.

If it really just fell into the sea, it would be like taking a bath at most.

After all, the tide is constantly washing it, so even if it falls into the toilet, it won't be too dirty.

But what if it didn't fall into the sea.

If you get hit by a sharp rock and get injured, it's really not worth the loss.

After plan one failed, plan two was devised.

That's what Zhang Liu is currently planning to do.

A "lattice" was constructed directly near the cave and close to the sea.

A long knife is used to split wood, while a short knife is more suitable as a digging tool.

The best place he originally selected was on a flat piece of land behind the cave.

It is about 200 meters away from the cave, so even if there is a smell, it cannot spread.

But considering that February and March are likely to be the beginning of the rainy season.

He has not experienced it yet and cannot determine the specific flow situation at that time.

If the excrement settlement point is placed behind a cave, there may be a place where floods can wash away the waste.

When the time comes, the excrement will be brought over by the floods and contaminate the food in the cave, causing diseases, which will be more than worth the loss.

After all, the original intention of building toilets is for cleanliness. No matter how you calculate, you cannot put the cart before the horse.

So Zhang Liu moved to another place.

Where he currently is.

This is the reef area where goat heads and goat eggs were previously discarded.

The terrain is mainly composed of a reef beach and two parallel reefs.

Seen from a distance, these two protruding half-meter-wide rocks are like two slender fingers extending into the ocean. They are dozens of meters long, just like a wall.

There is a one-meter-wide space in the middle of the reef. This is a place that few people come to.

Because there are sharp barbs on this reef.

After climbing up, it is very easy to get injured.

And after the reef reaches the middle, its height from the sea surface is at least about four or five meters.

Such length, width, and height are combined with the sharp stones visible to the naked eye on the wall.

For everyone who needs to stay safe step by step, this place is undoubtedly a dangerous area.

Even the most adventurous Anya would not wander here to look for trouble.

Now that so much time has passed, the sheep heads and eggs thrown into the sea have long disappeared.

Zhang Liu already had a rough plan for how to use this area.

That is to dig a large pit in the land near the mountain in front of the reef to store "excrement"

If it's full one day, use tools to scoop the excrement directly to the reef area and dump it.

Or in the future, if you have the tools at hand, you can directly dig a tunnel downward from the pit and let the seawater pour in, which will also play the role of "living water for decontamination, once and for all."

Thinking of this, he also suddenly remembered the bamboo forest on the east side of the mountain.

There are a lot of bamboos as thick as bowls over there. If they can be used properly, it is not impossible to build sewage pipes...

Zhang Liu also had his own ideas as to why he chose this place as the sewage area.

Although I don’t know how deep the reef is.

When he thought about it, the area where the two reefs ran parallel to each other was at least extended several dozen meters to the sea surface.

If you pour your domestic sewage here, it will be safer and less likely to pollute the water source than pouring it elsewhere...

After confirming his idea, Zhang Liu began to dig wildly on the ground with a knife.

No matter how loose the soil is under his feet, if he wants to complete a pit more than one meter deep and half a meter wide, it is still a big project.

It wasn't until the sun rose in the sky that Zhang Liu tapped his extremely sore waist and nodded slightly while looking at the irregular square pit in front of him.

The next step is to find a way to establish a foothold on which you can squat safely.

This problem is solved very well.

Just go and cut enough wood.

After taking a look at the arm-thick trees that could be seen everywhere nearby, Zhang Liu silently raised the long knife in his hand.

start work!

Section 164 # Volume [-] A stable food source is the first step in development: Chapter [-] The girl who dislikes chopsticks

While Zhang Liu was cutting wood, Qin Ruoyan and Lan Yueting were also looking for someone, and they successfully found Anya eating papaya under the papaya tree.

"Classmate Anya, I found you!"

Lan Yueting picked up the water bottle and poured a sip of fresh water into her mouth. Lan Yueting's tone was already a bit scared.

The hot weather combined with the rugged roads in the mountains can make people easily anxious.

Especially now that the sun is shining directly.

She was really worried when she didn't see Anya again.

"Don't run around in the future."

Seeing the happiness on Anya's face with the complicated expression of embarrassment, and she has not spoken to defend herself.

Qin Ruoyan also understood that the other party was probably lost and couldn't find anyone.

But she remembered Anya's proactive behavior of breaking branches last night.

So now Qin Ruoyan can't even complain.

Just a hint in a low voice.

Anya nodded, she was indeed lost in the mountains.

There were trees of similar length everywhere. After turning left and right and deviating from the marked point, Anya suddenly found that there was a small forest behind her.

After walking around a few times, she finally found the papaya tree she met Zhang Liu last time.

But they couldn't find the way down the mountain together.

Feeling hungry and thirsty, Anya simply squatted down and started eating papaya.

At the same time, she was also planning to find a direction to go down the mountain later if she couldn't, and then go around to the green pool from the outside.

Now that she met Qin Ruoyan and Lan Yueting, Anya felt a lot more relaxed.

And she took the initiative to hand over two ripe papayas and said, "Yeah, I know, do you eat papayas?"

"Thank me……"

Qin Ruoyan actually doesn't like papaya, a fruit with a bit of a "medicinal taste".