Hi,
I'm new to this forum but we had the same troubles,
we got caught in a horrible storm and got sooo wet so when we came home.
I had an idea so I went to my local canvas guy and got him to make a canvas bed end, he used velcro and pop rivets on the lid and we just velcro our canvas around our bed end it is a bit longer than bed end
. We have 2 poles we support the lid because of the weight and we use guy ropes thru holes that are punched in seam of the canvas. So the result is the water runs down the canvas bed ends lovely and dry,we tested it when we got caught in the feb floods in cobram..Result bed ends dry everything else wet..
Thanx Ruandleigh