I have used a piece of 4 inch PVC split down the middle. I have a several "troughs" of varying lengths, like a 6, 5, 4, and 2 foot lengths. They store stacked together when travelling. I cut eight cradles coped out of 2X6's about 6 inches ling. Tgey easily stack in a small rubbermaid witha dozen 2X4 blocks. I can shim the troughs to the best incline with the assortment, vary the lengths of the troughs, change the directions of the troughs to avoid obstacles, clean them up easily, and guarantee support that dousnt allow thr hose to bend, twist, hump up, or fall with surges, etc. To wash up, I take my clean-up water hose and spray the sewer hose out as I hold it upfrom the trailer end. The hose stays in the trough and no mess for me.
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