My wife and I recently sold our 30' bumper pull and bought a 2015 gateway 3650 bh. Our first set up was 450 miles from home. We got all set up and started using the trailer. The second day I noticed a large water spot under the rear grey tank. The connection between the tank and the exit pipe is leaking somewhere. Also the hot water was luke warm and I couldn't figure it out. Took the panel off to look at the back side of water heater and found that the bypass was open so half the water coming was cold. Then we last tried to watch a movie and found that the DVD portion of the entertainment system does not work. I pulled it out and ran brand new RCA cables and still no luck. Finally I hooked up a sewer hose to dump my tanks and found that none of my hose.connectors fit tightly. I tried every connector I had from expensive rhino to cheap walmart and nothing will seal tight. Almost as if the ABS is slightly smaller than 3". I added rubber gaskets in all my connections and I still have leakage. Overall we love the layout of the trailer for our family but I am not happy with the performance.