Hi I go with Iain on the Dolly wheel.safer in the boot. If you have a boat trailer you can lift fairly easy,I would recommend a piece of pipe, which goes down where the dolly wheel goes and drill 3 holes to take a 6" nail which will give variouse heights to suit the drainage you need.I am trying to post a photo of mine but i have not had much success in the past,so try to think of the pipe in the hole,then lift the trailer up by the coupling and slip the 6" nail through one of the holes you have made,and the trailer shaft drops gently down onthe nail. :beer: