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TL;DR
- A glass of water covered with paper left in a sink can detect plumbing leaks.
- The paper reacts to any dripping, spraying, or leaking, showing signs of moisture or displacement.
- This simple visual alarm helps identify small leaks before they cause extensive damage.
- Hidden leaks can waste thousands of gallons of water annually per household.
- Globally, around 900 billion gallons of water are wasted annually in homes due to leaks.