Bob Darrah wrote:

Anderson Ed wrote:

Snip.

If anyone has a suggestion about how to vent the header tank for vapors
and not have the boost pump push fuel thru the vent, I would be
interested. But, so far have not had vapor build up problem since these
changes. I would most expect it on ground runup on a hot day so we will
see in August.

Ed Anderson

This doesn't meet your stated requirements, Ed, but the end results are the same.
  Vent your header tank into your mains.  The fuel pump will still pump fuel
through the vent, but you still contain the fuel.

Bob Darrah

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