Everyone Ignores the Gurgle: What Water Hammer From Closed Valves Really Reveals

https://www.canberratimes.com.au/story/9118615/top-plumbing-warning-signs-you-shouldnt-ignore/

You hear a gurgle, then a sharp knock, and everyone in the house blames the cat. Don't laugh it off. Those sounds are clues. They tell a story about pressure, air, worn parts, and sometimes looming failure