Bob, this is my favorite story found on the Heartland forums about said slinky. I was "inspired" by it a while back but just now pulled the trigger on the Waste Master...
"A few months back, my son found himself at a campground where he was a few feet short on sewer hose to the drain. The campground had the better quality hose or a cheap "make your own" hose. Being the "frugal" person that he is, he went cheap and finished their trip.
Last week they were once again in a situation that required more hose, so out comes the "cheap" hose. This time, however the run was uphill, and he didn't take the time to correct it. They had a lot going on, and forgot to drain the black tank. At 2 am in the morning, his wife wakes him up because of the smell coming from a burping over full tank. Nothing will do but that he go empty the tank "right now". So still half asleep and in the dark he pulls the black tank valve. After a bit he realizes he doesn't hear anything running. When he turns around he sees what looks like a "bloated" sewer hose up the line. Realizing at that point that he forgot about the line going uphill, the first thing that came to his groggy mind was to go to the bloated section and "lift up" the hose.
The first thing that a fully awake, rational individual would do is shut off the black tank valve before proceeding. The second thing they would do is "NOT TRY" to lift a cheap hose full of poop. As soon as he lifted the hose, it came loose from the coupling spaying you know what all over. Again, a fully awake rational individual would have immediately ran to close the black tank valve, but at 2 am in the morning he was as we already surmised not thinking clearly. Instead while trying to hold the spewing hose together while being covered in &^%$ he yells for his wife to come help. She rushes out to see the mess, and rather than turn off the black tank valve, an argument ensues over who's responsible for the mess. It wasn't until lights came on in the neighboring trailers that they finally came to their senses and she closed the valve.
Once the beast was tamed, they were then able to start the clean up process, which was fortunately completed before dawn. Eventually the blue tint on the hands will go away and it will be nothing but a bad memory, and the grass on that side of the hill will probably be a little greener in the future"