"Let's eat first, and then we can work."

Tian Ya and the other little ones couldn't help but whisper happily. They sat in a row on the rocks, waiting for Jiang Huaixu to bring them food.

After Jiang Huaixu distributed them one by one, he gave the rest to Qian Xiuzhu.

There weren't many roasted ones, so the adults could only eat them fresh, but there was still a lot in the backpack, so they could make sweet potato porridge for dinner.

Jiang Huaixu had just eaten, so she was not hungry. She returned to the tent, took out the wooden barrel for steaming rice from the space, and started her own water filtration plan.

She first spread some of the remaining charcoal from roasting sweet potatoes on the bottom of the wooden barrel, and then covered the charcoal with fine sand, coarse sand, small stones, and large stones.

"What's the use?"

A questioning voice came from above. Jiang Huaixu looked up and saw it was Jiang Erlang. He explained as he moved his body, "Before, we drank rainwater, which was at least cleaner. Now the water we drink is too turbid and contains a lot of dirt. It would be bad if we get sick after drinking it."

She patted the wooden bucket in her hand and said, "This can filter dirty water."

"Filter?" Jiang Erlang savored the word carefully.

"It's all about purification. There's a saying, 'Clean water keeps the plague away.' After a flood, as long as you prevent what goes into your mouth and nose, you won't get sick."

"So there's such a saying. Second brother, you're so short-sighted. Wait here while I fetch the water."

"Okay." Jiang Huaixu nodded.

As soon as Jiang Erlang left, Jiang Zhou came over.

"Xu Jie'er, is what you just said true?"

Jiang Huaixu looked up at him, "If it's not true, why would I put so much effort into it? I'm just kidding. Believe it or not, it's up to you. Different people have different opinions."

The last sentence made Jiang Zhou so angry that he fell backwards, "You little girl, how can you talk..."

Jiang Huaixu glared at him, and Jiang Zhou shut his mouth instantly.

He suddenly remembered that this girl seemed to have a dagger on her, and it would be bad if she angered him.

"My family also wants to drink clean water. Please teach me."