Interpretation #9311
Published October 21, 2025
Original Request
- Code Version
- 2023
- Code
- PLUMBING
- Code Description
- Chapter
- Section
- 604.9
- Topic
- water hammer arrestors required
Question
Is a quarter turn individual fixture shut off valve (fixture stop) considered a "quick closing valve" that would require a water hammer arrestor?
Answer Published 10/16/2025 at 7:46 AM
No.
Commentary
None.