I agree with John, also read the these chapter's
The below will give all Piping Engineer's the detail:
and the software
"Pressure surge in pipe and duct systems" by J A Swaffield and A P Boldy
• Chapter 1 - Pressure transient mechanisms and historical development
• Chapter 5 - Pressure transient network boundary conditions
• Chapter 6 - Surge control and suppression
• Notation
• References
Waterhammer home page
http://www-interact.eng.cam.ac.uk/wh Dr Ruth Thomas
CEE, Heriot Watt University
Riccarton, Edinburgh, EH14 4AS
Email: rct@eng.cam.ac.uk
Tel: (0131) 449 5111
Fax: (0131) 451 3327