We never fill the fuel tank from a marina, always use a diesel cannister and the syphon that others have mentioned.
I keep a mesh bag with the Syphon, Clean up cloth, Tank Key, Line ( to secure the can to the rail by the fuel fill ) and a bottle of bio protection fluid.
My process is to move the diesel can to the back combing and secure it to the rail with the line, unlock the fuel fill cap, pour the right amount of bio protection into the diesel can, use the syphon to transfer most of the diesel in the can leaving a small amount behind. When transfer is complete, wrap the syphon hose with the clean up cloth and withdraw the hose from the fill point catching any drips from the hose with the cloth. Close up the fuel fill point, dry off the hose and release the diesel can from the rail. Put everything back in the bag and leave it out to air in order to eliminate any smell from the cloth.
It makes everything much easier having all bits and pieces in one place to get the job done.
I keep a mesh bag with the Syphon, Clean up cloth, Tank Key, Line ( to secure the can to the rail by the fuel fill ) and a bottle of bio protection fluid.
My process is to move the diesel can to the back combing and secure it to the rail with the line, unlock the fuel fill cap, pour the right amount of bio protection into the diesel can, use the syphon to transfer most of the diesel in the can leaving a small amount behind. When transfer is complete, wrap the syphon hose with the clean up cloth and withdraw the hose from the fill point catching any drips from the hose with the cloth. Close up the fuel fill point, dry off the hose and release the diesel can from the rail. Put everything back in the bag and leave it out to air in order to eliminate any smell from the cloth.
It makes everything much easier having all bits and pieces in one place to get the job done.