Water Supply Industry Interpretations and Advice
- Area of Interest : Installation
- Topic : Surge arrestor
- Title : Deadlegs as surge arrestors
- Clause Reference : Regulation 3 (2)
- Reference Number : I18
- Decision Date : September 2005
Any system identified as likely to suffer the effects of pressure surges shall be protected by a suitably sized surge arrestor or expansion vessel. It is not acceptable to create a dead leg to act as a surge arrestor.