That's right, with rain, as long as you make a big lid on the water tower, and the rain shower is engraved under the lid, won't it be solved?! Joya finally came out of the fog and made a large manhole cover out of Mithril after dividing it by two, but when she was done, she remembered a problem.

"If the rain can't stop, won't the water leak out of the water tower when it's full?"

Yu Ying was also asked, walked over and looked at the array, her eyes went straight to the circle, what kind of thing is this, I don't understand it at all. She simply squatted in front of the master's low table, and tilted her head with the master to think of a way.

Yuhuan was impatient waiting downstairs, she teleported up to the second floor, and found that Yuying and the master were in a daze.

"Don't play like this, let me be a coolie, you two are lazy here!"

Qiao Ya thought for a long time and had no idea, but was interrupted by Yuhuan, she sighed in frustration and waved her hand: "Bear child, while playing, didn't you see that the teacher was thinking?" ”

Yuhuan was anxious: "What do you think, make one and I'll take a look first!" It's so nice to say, it makes people have an appetite. ”

Qiao Ya thought about it and stood up: "That's right, I can't figure it out just by thinking about it, so it's better to do an experiment." ”

The bamboo downstairs finally had a place to use, and Qiao Ya saw that the bamboo on the ground was big, and with a wave of her hand, she put it all into the space, and then began to connect the bamboo pipe first.

Of course, the experiment can't be as high as a floor, Qiao Ya first found a large vat with a lid, used Mithril to make a thin silk, and fused into a rain array to inlay it on it, and then strengthened her fingers with a gold ability, and dug a hole with the thickness of a bamboo pipe under the vat, and connected the two ends. began to urge the rain shower.

Soon, there was the sound of water dripping in the vat, and the sound of water became louder and louder, until at last the water was full and the lid floated.

Taking advantage of this moment, Qiao Ya immediately pulled out the plug that was stuffed in the bamboo pipe, and soon there was clear water flowing out of the bamboo pipe. Yuhuan and Yuying immediately cheered, it turned out that the master was not deceiving, there was really water that flowed out automatically!

"Don't be happy so early." Joya was bitter, because as soon as the plug was plugged, the water in the vat would soon overflow. "Is this a failure?"

Yu Huan finally joined the thinking team. After looking at it for a long time, he suddenly said: "Then every time you want water, let people activate the magic circle." Just turn it off when not in use. ”

Qiao Ya slapped her forehead and sighed: "Idiot, is that still called tap water, that's half tap water, right?" ”

When Yuhuan heard this, his face collapsed. So the three of them squatted at the staircase of the main building. Wide-eyed stared at the jar worried.

It didn't last long. Because the jade robbery that went to the bottom of the mountain to do the mission has returned. When she saw that there were three squatting at the top of the stairs, blocking her way back to the second floor to rest, she was immediately angry.

"Master, you're good. It's okay to take your sister to count ants, okay? ”

Qiao Ya's eyes lit up when she saw that the Jade Tribulation was back, and she beckoned to the Jade Tribulation: "It's good, it's good, you come, how can you make this magic circle stop raining automatically?" ”

Jade Tribulation didn't understand what was going on at all, but Yu Ying Yuhuan jumped up and explained how this thing worked, and Jade Tribulation became interested.

"Tap water? That means you can use whatever you like in the future? Don't look at the faces of those water beasts anymore? ”

There are three black lines on Qiao Ya's head, this kid, how resentful you are. Who told you to always threaten people, and you deserve to be counter-threatened when you use water.

"Let's see, let's see, I'll see what it is." Yu Zheng squeezed away Yu Ying Yuhuan and squatted in front of the vat, Qiao Ya took the bamboo pipe plug away and showed her again, and she immediately understood.

"To put it bluntly, it's just water flowing down, right?"

"Yes, yes, you're right." Qiao Ya thought to herself, in fact, she was using pressure, but the little kid still didn't know how to pretend to understand.

"Hmm......" Yu Zheng grabbed the pen and poked it around on the jar, and suddenly said, "Teacher, what is the principle of the operation of your magic circle?" ”

"The pattern on the outside is the pattern of the circle, and each circle has a fixed pattern to make the spell work. However, the circle alone cannot be activated, and mana input is required. This small one must be manually entered with mana, and if it is made larger, it can be replaced by mana stones on the formation, as long as the mana stones are inlaid, the magic circle will operate automatically. There are three circles of magic circles outside our sect, you see I don't usually have to worry about them, they just rely on mana stones. ”

Jade Tribulation thought for a while and asked, "Then did the magic circle stone stop when it was taken out?" ”

"That's right." Joya nodded, "But there has to be a sophisticated mechanism for it to determine for itself when there is water and when it doesn't." Timing is definitely not a good thing, because the time of water use is uncertain. ”

Yu Zheng suddenly slapped his face and said: "There is a thing on the top of the head, make the magic circle hollow, as soon as the water is full, that thing floats up and squeezes the stone out, doesn't it stop?" When the water is less and the things fall, the mana stone also falls in the array, and it starts again, isn't it? ”

Qiao Ya was stunned and then slapped herself. Yuying Yuhuan and Yujiao were stunned, what is wrong with the master?

"I only thought about pressure, I didn't think about buoyancy, damn it! Sure enough, if you are not a science student, you can't do this porcelain work! ”

Yu Zheng said, isn't this the same as the pump in the toilet tank? Qiao Ya is no longer a science student, and she still knows how the water in the tank works. It's just that now it's time to use it back.

For the next three days, Qiao Ya locked herself in her room for experiments, and Yuying Yuhuan was not so lucky to follow Qiao Ya crazy every day, because they were about to officially start doing sect tasks.

After three days, Joya finally solved the problem with the water pump by adding a float bracket to the vat, each corresponding to the bottom of the mana.

And the lid of the water tower she remodeled again, the previous cover was thickened by one layer, the layer closest to the water surface was still a magic circle, but the middle of the upper layer was made hollow.

As soon as the water level rises and the bracket is floated, it will lift the mana stone and sink into a hollow hole, but it can ensure that the mana stone does not run around. As soon as the water level drops and the bracket leaves its position, the mana stone will fall down again, making the circle work.

Joya repeated the experiment dozens of times, until the position of the mana stone and the position of the bracket were completely stable and absolutely not running around, and then began to make a series of water pipes. Straight pipes, bent pipes, and all kinds of water pipes of different lengths took only one day to make.

And the craftsman's side finally made the faucet on the day the water pipe was ready. It's wooden, but it's better than nothing. (To be continued.) )