Change Fuel Hoses in Trunk: Empty the Tanks?

Maybe my changeover valve is ancient - Aristides this changeover value looks completely modern. Maybe I missed the entire thread on this. Can you share some info?

Ian

It’s a modification I made quite a while ago:

1 Like

Thank you. Very nice work!!
Ian

Vert useful Doug, the things one learns in this forum , even permeability of fuel lines ! I would be led to think that permeability was only a result of the deterioration due to aging. I will now make an educated order :blush:

Best,
Rui