I have dual Scepter fuel cans mounted to my roof rack that I use in conjunction with a Super Siphon. The siphon will empty all but approx.
1 cup of fuel. Not too bad...
That one cup is impressive - My first attempts left over a gallon in each can. I guess if takes some practice to become proficient.
Does anyone store the siphon hose coiled up like I do? I found that after uncoiling the hose, it still retained quite a bit of curvature. This made it difficult for me to determine where the suction end of the hose was in relation to the bottom of the fuel can.
To combat this, I found a piece of 3/4"ID EMT conduit (approx 18"L) slips nicely over the hose and can stiffen the siphon hose allowing me to better control that initiating of the siphon action and its placement in the fuel can...
I don't know if EMT conduit is good or bad for gasoline, or if I'd be better off with plastic (PVC/ABS)? Though my first thought was a spring that could slip over the hose - like used to prevent kinking in garden hoses, etal...