When I started RVing I was told that WA and OR required that the sewer hose be supported - as in: there must be something between the sewer hose and the ground, even if that 'something' is merely lying on the ground. Since I have a low-to-the-ground sewer outlet, a trolley would make the hose run uphill. My solution at the time was to take 2 of the cheapest 10 foot long vinyl gutters I could find and cut them in half. I have 4 five foot sections that collapse together as 1 and easily fit in my pass-through. I lay them on the ground or support them with leveling blocks to create pitch. I use 3 or 4 thirteen inch bungee cords to contain the hose in the gutter sections. If I had known about the Easy Slider I probably would have gone that route. click each image for larger photo.
 