Listening Quiz: Tư Vấn Xử Lý Chất Lượng Nước Trong Dự Án Thu Hoạch Nước Mưa – Advanced Level

1. What is the conversation mainly about?
2. What system does Mark suggest for removing oils and chemicals?
3. How often should the filters and separators be cleaned?
4. Why does Laura ask whether UV affects water taste or smell?
5. What backup disinfectant can be added if the UV system fails?

Luyện tập thêm về bài học này: