We have purchased two RhinoFlex hoses in the last three years. The first one was defective when we bought it, but because you can take the end off cut off the bad section( about the first foot) and replace the end, we were then able to use it. We used it that winter, and the following summer where it was hooked up continuously from April till the end of October. When I went to put it away, it cracked wherever it bent. Off to the dumpster it went. We got a replacement from the Camco Dealer in the Big Tent at Quartzsite. Because the previous one had failed, she sold us a new one at half price. We used it the remainder of our snowbird season, and when we returned to Iowa for the summer, it was hooked up permanently for the summer. A month or so ago I moved it just a bit and it cracked, so again off to the dumpster. I guess I am a slow learner. Even though I really liked features of the hose, I learned it is not made to lay in the sun for any length of time.
One more issue is that we have the Camco clear 45 degree adapter hooked to our black land and gray tank outlet to which we hook the Camco hose. This connection started leaking, which is why I moved the hose that then cracked.