It's just dribbling.

I'm using fuel dots. The "fill" fuel dot is tied in to the fuel supply line, so starting at the tank there is a "T" for the fill fuel dot line, a filter, then the engine fuel inlet barb. The "vent" fuel dot is tied in to the pressurization line, so starting at the tank there is "T" for the vent fuel dot line, a checkvalve, a filter, then the engine pressurization barb.