Cannon also rushed over to help. When he heard what Xu Zhen said, without saying anything, he ran directly to the steel factory and took out a huge iron rod.

He couldn't move it alone, so he called Yang Tianlong, and the two of them held the iron bar and brought it to Xu Zhen's side.

"Put it in! Let's work hard together and find a way to speed up the melting of the ice inside!" Xu Zhen shouted.

The cannon inserted the long iron rod into the water, and then everyone took the iron rod and pushed it in hard.

Five or six people worked hard together.

As long as there is a small gap, it can quickly flow through the back. If it is completely blocked, a sealed environment will be formed, making it more difficult for water to come out.

"Hey! Hey! Hey!" everyone shouted while poking inside.

Click!

It seems that the middle layer of ice has been broken, and what follows is...

Sizzling——

Looking at the water surface, it is slowly rotating and swirling.

Got it all!

Cannon shouted loudly.

After solving this problem, Xu Zhen did not stop and continued walking to another drainage outlet.

The snow is too thick and the temperature rises suddenly. The snow on the surface melts, but the ice underneath does not melt as quickly, resulting in water accumulation on the surface, but it cannot be drained underground quickly!

After this lesson, Xu Zhen secretly made up her mind to improve the drainage system of the base.

Xu Zhen led everyone to continue clearing the other six drainage outlets one by one.

At three o'clock in the evening, all the water outlets were cleared.

Crash--

On the other side of the cliff, there are several huge water outlets that continuously discharge the accumulated water in the base.

There are also some iron railings set up in the water outlet. These iron railings are used to prevent people or zombies from sneaking in from the outside.

The accumulated water in the base is reducing at a speed visible to the naked eye.

Li Yu was slightly relieved when he saw this situation.

However, in order to maximize the sealing of the fence, the base was built like a copper wall and an iron wall. However, I did not expect that there would be problems if the sealing was too high.

Xu Zhen was deeply aware of this problem and sat at the drain in a daze that night.

The drainage in the base is very smooth, including industrial wastewater, domestic water flowing down from the mountains, etc. The ditches set up are all smooth.

But the problem exposed this time was that the sewers were frozen in freezing weather. Xu Zhen looked at the drain and thought.

Suddenly, he remembered the problem Li Yu had always told him, the problem of heavy rain.

In the previous heavy rains, there were no problems with the drainage system after his improvement.

Only this time, there was a problem due to freezing in the snow.

He wondered whether it would be possible to achieve the drainage speed of these pipes if faced with a heavier rainstorm.

After thinking for a long time, he didn't know that the main displacement was related to two aspects.

The speed of the water flow, and the diameter and width of the drainage channel.

This is difficult to calculate.

So Xu Zhen started thinking and acting around two issues.

1. In the case of heavy rainfall, how to prevent water accumulation in the base.

2. In extremely cold conditions, how to solve the embarrassing period after the sewer is frozen and the temperature rises?

Focusing on these two problems, he began to upgrade the drainage system of the base again.

the next day.

Most of the accumulated water in the base has been drained away.

There are still some ice cubes that have not melted completely and are slowly melting at this time.

The water in the mountain pond also melted. Li Yu looked at the lake and could occasionally see some fish swimming around in it.

In fact, fish in winter can survive even at temperatures tens of degrees below zero.

The reason is not how resistant they are to freezing, but because after the ice freezes, a relatively high temperature will be maintained under the ice, which is insulated from the outside temperature, so the fish can still stay alive.

Three days later.

In the greenhouse, the first batch of crops are ripe!

Everyone welcomed the harvest!
Chapter completed!