On 6/21/05 11:12 AM, "Al Gietzen" <ALVentures@cox.net> wrote:

One of the Velocity builders with a Soob (Wayne – something) said he had so much foam returning to the sump tank from the pressure regulator that the foam would come out of the fuel system vent. He added a small reservoir of some kind in the vent line as a foam/liquid separator.  That apparently solved his problem.
 
In the 4-5 hours of running time I have on my 20B I have not observed any foam from the stock venting; nor have I heard of anyone else observing this phenomenon.  Why in one case, I have no idea.  But the potential for foam buildup is there, and it is something to keep in mind when designing your fuel system.
 
Al

First time I hear that? I know diesel is foaming, but gas? Maybe some kid put dish washing soap in his tanks? :)
Buly