Ye Yuan used these injured laborers to repeatedly conduct experiments with different kinds of lake water.
The final conclusion was that the darker the lake water, the better the effect.
This answer delighted Ye Yuan.
Previously, whether at the surface or the bottom of the lake, all the water had been emerald green.
But now that the spatial lake had deepened, two colors had appeared: emerald green and dark green.
The final conclusion was that dark green lake water was three times as effective as emerald green lake water.
In other words, Ye Yuan had suddenly obtained another kind of Spatial Lake Water even more precious than the previous lake water.
However, Ye Yuan also discovered a problem: Spatial Lake Water recovered much more slowly than before.
For example, Ye Yuan had previously used Spatial Lake Water to irrigate plants.
The amount of lake water would decrease, but it would recover within a few days.
But now, after using the same amount of Spatial Lake Water,
by Ye Yuan's estimate, it would take at least two months to return to its original level.
In other words, Ye Yuan could no longer use Spatial Lake Water to irrigate every plant in the future.
This result left him depressed for quite a while.
Then he remembered that he still did not know what rewards this system upgrade had given him.
So he immediately brought up the panel and checked the rewards from this upgrade.
Given the system's usual ways, every upgrade awarded Ye Yuan something. On top of that, the system mission itself was to have the host upgrade the system.
So unless he had guessed wrong, Ye Yuan should have traded one upgrade for two rewards this time.
The thought alone made him happy. He would not mind having something this