I may be having a dumb moment, but I can't work out what the low front connection is on this tank.




Top right is fuel return
Bottom right is outlet to pump/engine etc.
Middle front??

Thanks
Regards
Chris

Or is top right a vent and the return is the middle front and it needs a one way valve?

Bit awkward running uphill for the return at the top of the tank, but having it below the "waterline" will be awkward too, unless there is a oneway valve fitted.

You might need to shine a torch through that bigger hole you have in the top of the tank, and see where the different pipes go to inside ?? top on mine is a vent, lowest is from a swirl pot and is the feed to engine, another lower one is the return from an injection system or bypass.
Hope this helps
Jason

Thanks Jason I'll take a look.
I'm pretty sure they are just bosses with no internal pipes, but I'll check to make sure.

ta
Chris

If your lucky , the holes will be undrilled, then you just drill the ones you need

Jason