Experts suggested collecting pressurized water samples through Suolongjing and immediately requested instructions from the combat command center through long-range radio. Not long after, five or six assault boats carrying dozens of soldiers drove from the rainy and foggy intersection outside the police building.
Came over.
Zhou Cheng, Cao Rui, Xia Lan, Wei Xu and other experts also put on raincoats and jumped on the assault boat with sampling equipment. Following the waves of water, they disappeared into the street filled with floods and raindrops.
.
Several assault boats arrived at the West Fifth Ring Auto Parts City that Zhou Liecheng said. The rain here is less intense than in the central district. At least people don't have to frequently splash water out of the assault boats. The large square of the auto parts city is lined with
The big intersection next to it looks like a lake filled with muddy water.
Zhou Cheng directed the assault boat to drive slowly in the square. The water level here was much lower than in the city center. The bottom of the assault boat would occasionally hit debris on the bottom of the water, making a "boom! boom!" sound.
After Zhou Cheng repeatedly confirmed his position relative to the two spotlight poles on the square, he stopped the assault boat and jumped into the waist-deep water. Everyone on the boat was shocked, but Zhou Cheng
He raised his hands and took small steps calmly in the water, signaling everyone to stay quiet.
He stomped around in small circles in the water, and people on several Zodiac boats silently watched him walking in the dirty water. The only sound left in the world was the sound of rain falling into the water.
Suddenly, Zhou Cheng's eyes widened and he stopped. He stamped his feet several times in the water, and people around him heard the dull sound of drums coming from the water.
"This is it!"
Cao Rui on the boat said:
"The water is so murky, Lao Zhou, are you sure this is the manhole cover you mentioned? How about I dive in and take a closer look?"
Zhou Cheng stamped his feet a few more times and said confidently:
"It's true, this cover is bigger than the other covers. And this is the only manhole cover around here!"
The engineer adjusted his glasses that were full of water drops:
"But the wellhead is submerged in water. Even if the pressurized water spurts out, our samples will be contaminated by the flood!"
The officer leading the team on the other assault boat smiled slightly:
"You don't have to worry about it. You go to the nearby building to take shelter from the rain. That's what so many of us are here for. Come back when we've finished."
After saying that, the officer and dozens of soldiers began to take action. Some of them stayed near the manhole cover, while others carried assault boats to carry sandbags on the barricade that was half submerged by floods in the middle of the intersection. Soon, the manhole cover was
A cofferdam with a diameter of four to five meters and above the water was built with sandbags around it.
With the combined action of diesel generators, water pumps and manpower ladles, the water in the cofferdam was drained out in a short time. Although the ground was covered with a layer of silt, the manhole cover engraved with Sanskrit verses and dragon and phoenix patterns was revealed.
The metallic luster of the manhole was still vaguely visible. The soldier brought a crowbar, and the three of them worked together to pry the manhole cover open.
Accompanied by the harsh sound of metal friction, the manhole cover was turned up. The well was filled with filthy muddy water, and two submersible pumps were thrown in. As the sewage in the well was discharged, a manhole cover covered with sludge and rust was fixed.
The thick iron chain next to the well circle was revealed.
The soldiers set up brackets and pulleys in the water outside the cofferdam and began to pull out the iron chain from the bottomless well. It was very laborious at the beginning, and it took dozens of soldiers to pull out a few sections.
.But as more and more sections of the chain are pulled out of the well, the speed of pulling out the chain becomes faster.
Accompanied by a sound like gravel falling into a deep pipe, the mud in the well began to surge violently, and a nauseating smell emanated from the mouth of the well.
The chain covered in dark red mud continued to be pulled out, and the sound in the well was as strange and loud as the strong wind pouring into the cave. If you listened with your back, it was somewhat similar to the legendary dragon's roar.
A crisp sound of "Puff!" exploded from the mouth of the well, and a jet-black mud spurted out from the well, followed by a strong stench. But the soaring mud column soon turned yellow-brown, and then changed again.
It turned dark red. Xia Lan and Wei Xu who were beside the cofferdam quickly turned around to avoid it, but the splashing mud still hit them.
Wei Xu struggled to walk in the waist-deep water, wiped the smelly dark red mud on his raincoat, and said to Xia Lan beside him with a smile:
"Don't tell me, this really sounds like dragon blood."
Xia Lan turned her head and glanced at the gradually lowering jet, slowing down her escape.
"This can be considered dragon's blood. If you go to our school's chemistry laboratory, prepare a few bottles of iron oxide, and mix it with smelly mud, you can win the Nobel Prize."
Wei Xu wiped the mud on his body with a smile. The rain quickly cleaned up the "dragon's blood" on his raincoat.
"Pull out a few more sections to reduce the pressure of the pressurized water spring, and the jet will not be so violent!" The engineer next to the cofferdam, whose raincoat was covered with mud, shouted loudly.
Sure enough, after pulling out a few more chains, the height of the jet flow became several meters, like a fountain. The jet speed also became lower, and the color of the jet flow became transparent. The water pump in the cofferdam was started.
Get up and drain the water that falls into the weir.
"Hurry up and get the reagent bottles to fill the samples. The water in the cofferdam will contaminate the samples soon!" the engineer shouted as he climbed into the cofferdam.
Cao Rui quickly took out reagent bottles one by one from the wooden box of the assault boat. Xia Lan, Wei Xu and Zhou Cheng also jumped in. They used the reagent bottles to directly collect the pressurized water samples from the water column rising into the sky.
After a while, dozens of reagent bottles containing pressurized water samples were put back into the wooden box.
The officer whose face was covered with water walked to the assault boat and said to Cao Rui:
"Director Cao, it's getting late now. You should go back with the samples and experts first. We will handle the rest. There is so much water in the street now. We have to put the iron chains back and cover the manhole covers."
Go up. Otherwise there will be trouble if someone falls into this hole."
Cao Rui raised his head and glanced at the already very gloomy sky:
"Okay, then I'll leave this to you."
It was completely dark when the assault boat returned to the police station building with two boxes full of reagent bottles and the experts. While they were going to collect samples, another team of people also took the assault boat from the chemistry laboratory of Qingbei University.
The required equipment and reagents were retrieved.
But those are only some of the most rudimentary equipment, such as microscopes, beakers, alcohol lamps, reagent cards, test papers, etc., and efficient and complex equipment such as molecular analyzers and elemental spectrometers, etc., these equipment are used in electromagnetic pulse storms.
They were scrapped in the middle of the year, and many of them have been soaked in floods.
After the experts simply ate self-heating food, they devoted themselves to the analysis of pressurized water samples. The primitive equipment made their analysis process complicated and slow.
Although Xia Lan and Wei Xu have doctorates in astronomy, they can still use these basic chemical analysis equipment. After receiving simple training from professional experts, they also joined the work of analyzing pressurized water samples.
The night is getting deeper, and the only sounds left outside are the diesel generators and the sound of rain falling into the water. Although everyone wants to persevere, the heavy tiredness is as irresistible as the stove in winter and the air conditioner in summer. This At that moment, the sound of an assault boat engine could be heard outside the house from far to near.
After a while, Shen Manling walked in with a dozen young people in their twenties.
"These are students from the Department of Chemistry of Qingbei University. Director Cao helped me find them. Everyone has worked very hard taking samples today, so go and rest first, and they will continue the rest of the work."
Xia Lan and the experts did not shirk the blame because they were too tired, not to mention they did not know whether there would be heavier tasks tomorrow. No one thought that they were not working hard enough or being lazy. In this situation, It is also a huge contribution to ensure that you are healthy and energetic enough to devote yourself to the work you are best at.