anti siphon valve

twag4

Seaman Apprentice
Thread starter
Joined
Feb 22, 2008
Messages
30
Why do I need anti siphon valve? 99 merc 4.3l w alpha
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: anti siphon valve

It keeps fuel from siphoning out of the tank if a line (or something breaks) below the level of the tank. This would prevent fuel from siphoning out and possibly fueling a fire or creating a worse fire or a fire hazard.
It's also a coast guard regulation that they have one.

You will find it here in the CG regulations.
http://www.access.gpo.gov/nara/cfr/waisidx_03/33cfr183_03.html
 
Top