[Nitis]

Can someone who is smarter than me explain why it matters if the vent line is submerged? If you have a vented cap what difference does it make the pump isn't going to run backwards? I cant foresee fuel going backwards through the vent line and if that was a concern I am sure there is some sort of check valve system available.

At this point Its probably no more labor intensive and probably more cost effective to just install an inline if one needs to use the in cab tank.