It was past two o'clock in the afternoon.

Yang Zhiye and others drove a broken pickup truck back to Tianshui City from Maiji District.

The broken Pipeline No. 8 is near the entrance of the First People's Hospital on Jianshe Road. After the maintenance team closed the valves along the line, they were digging the ground of the sidewalk.

After Yang Zhiye arrived, he found that the pipeline had been excavated. These pipes were all old-fashioned iron pipes. They have been installed for more than ten years and are now rusted.

The team leader You Yusi hurriedly climbed up from the pit: "Mr. Yang, there was a gap in the nearby sewage channel, which washed away the sand and soil around the water pipes. In addition, the pipe leaked, and it would easily freeze and crack when the weather was cold."

"Thank you for your hard work, you can repair it as soon as possible."

"Mr. Yang, it may take two days to replace the main water pipe." You Yusi replied awkwardly.

Hearing this time, Yang Zhiye couldn't help but have a headache. Suddenly he patted his forehead: "When Snail Industry provided equipment before, it was not a batch of emergency repair pipes and equipment, so you can get it."

You Yusi, who was confused, was a little at a loss: "Uh... Mr. Yang, we have never used that device and don't know how to use it."

"Isn't there a manual? If it doesn't work, please contact Snail Industry."

In desperation, You Yusi had to ask someone to go to the warehouse. More than 20 minutes later, the emergency repair pipelines and equipment that Snail Industry had left here were pulled to the emergency repair site.

The maintenance workers hurriedly checked the instruction manual and found it was very simple.

"Quick, cut off the frozen cracked pipe."

The gas welding gun quickly cut off the section of the pipe that was cracked, and then used a wire polishing machine to polish the surfaces of the pipes on both sides.

Another repairman burns an iron ring red and puts it into the surface of the pipe. When the iron ring cools down, it will be tightly placed on the surface of the old pipe due to thermal expansion and contraction.

The reason for installing an iron ring is to match the emergency repair pipe. The emergency repair pipe that is also heated is inserted into the old pipes at both ends and cools naturally for more than ten minutes. The emergency repair pipe and the old pipe are firmly fastened together.

But this is not safe, because the pipe junction will still cause thermal expansion and contraction deformation due to seasonal temperature changes.

At the joint, the repairman puts an insulated container, which is similar to a car tire. Tighten the container and seal it to ensure that the container does not leak water.

You Yusi followed the instructions and opened the top of the container, poured pure water, then took out a bottle of white powder and poured it into it.

Finally insert the conductive rod into the solution.

“All up.”

In order to avoid electric shock, everyone left the tunnel.

You Yusi shouted: "Power on."

After pressing the power-on switch, the electroplating agent in the container quickly reacts and condenses into the metal pipe soaked in the solution. Soon a layer of silicon nano-plating layer covers the surface of the pipe.

After five minutes of power-on, the power-on was stopped.

When the electroplating maintenance ring was removed, the translucent coating and the silver gray color under the coating were exposed. Youyusi picked up the hammer and knocked it, and found it was very hard.

"Continue, electroplate all this section."

After working for more than two hours, I finally coated the old pipe, emergency casing, and the surface of the old pipe, the emergency casing, with a layer of silicon nano-coating.

After opening several gates along the way, tap water quickly passed through the maintenance section.

"Lao You, what's the situation?"

"There is no water leakage problem for the time being, and the casing is not deformed."

Yang Zhiye breathed a sigh of relief.

Then the maintenance team repaired the sewage channel and put a thermal insulation layer on the pipe to prevent it from being frozen and cracked again.

After the mud and water from the tunnel was pumped away and some of the sand and soil were backfilled, the water pipe had been buried for more than one meter by the sand and soil, further increasing the insulation capacity.

Next, you only need to repair the sewage channel and fill it with the sand and soil layer of more than one meter, so that the pipeline will basically be under the freezing line of the stratigraphic.

Seeing the weather getting dark and the maintenance staff covered in mud, Yang Zhiye ordered: "Lao You, the next finishing work will probably take one or two days, and I will end here today."

"OK."

Yang Zhiye took 300 yuan from his pocket: "Go back and take a shower and have a meal with your brothers."

"Thank you, Mr. Yang."

A group of repairmen hurriedly changed their spare clothes, packed up tools, fenced the pits with guardrails, and pulled up warning belts and warning flash lights.

Back at the water company building, the maintenance workers took a hot shower at the company, and Youyusi took everyone to the nearby food stall.

In the heavy winter, it started to snow outside.

Under the dim street lights, snowflakes flashed with white lights, and more than a dozen people wearing down jackets were talking and laughing along the way.

"The new boss is quite good at being a human being."

"I heard that after the company reform, it will be subject to assessment and diversion, but I don't know what's going on?"

You Yusi rubbed his hands and carried out maintenance work for a long time. Not only did his hands form thick calluses, but they would appear dry and cracked in winter, and cracks would spread across his fingers and palms.

He let out a sigh: "Huh... don't think too much, our maintenance team cannot be revoked, so it's hard for other departments to say."

"Hey, that repair equipment is very useful today."

"really."

"In the past, the main pipeline repairs were not going well for a day."

"Possibly new technology."

When I arrived at Qipin Xianchuan Restaurant, I ordered pickled fish, spicy chicken, couple lung slices, double-cooked pork, sour bean stir-fried pork, etc.

The boss is a big fat man, and he is an old acquaintance with You Yusi and others. He gave them a few plates of kimchi and spicy radish: "Is there such time? Isn't it a water pipe burst today?"

"Just repaired." You Yusi picked up a piece of radish diced rice and put it into his mouth. The bobo was so crispy that it was mixed with a hint of sweetness.

"Fixed? So fast?"

“New equipment was used.”

The fat man suddenly remembered something: "Lao You, the tap water has improved a lot recently, and it feels that the disinfection smell is not that heavy."

You Yusi, who took a sip of beer, smiled and replied: "The water plant has been renovated, and new technology has been used. When the pipeline is renovated, there will be no need to disinfect salt."

"The water plant has been renovated? I feel it's better to build more reservoirs, otherwise there will be no water in summer, which is a big trouble."

"Don't worry! There will be no water shortage this year." You Yusi said casually.

"Haha, I'll ask you to be a wise man." The fat man smiled on the surface, but in fact he didn't believe it. He had been in Tianshui for seven or eight years, and he knew that it was getting drought every year.

As soon as summer comes, many water cuts off at every three days, which means water supply is limited every day. Last summer, water cuts off on a large scale for several weeks.

Even the water of the river that passes through Tianshui City has been reduced by one year, and it was exposed directly from the bottom of the river last year.

After a while, the food was served one after another, and You Yusi and others also started to eat, but considering that they were going to repair the road tomorrow, they did not dare to let go of drinking.

Life is the fragmented stained glass, which is as colorful as a cylindrical glass, and it also reflects all kinds of strange people.

This city has a heavy past, and it is famous for its water and is gradually declining because of its water.

The water purification equipment in the tap water plant seemed to have replaced Tianshui with a stronger kidney, injecting this into a stream of life.

The residents living in it only felt the changes in water quality, but it is hard to imagine that the technology behind it will change their lives.
Chapter completed!