[scottz]

Originally Posted by Mr Pachu

I'm just wondering if this would work? You connect the trailer cord to the plug in the box so that your truck recognizes that a trailer is connected and then you plug your pump into the bumper plug? Any thoughts about this? Or will the truck only supply power to one plug at a time?

Who knows? But, when I'm filling my water tank, the back of the truck is near the back of the trailer not near the trailer cord.