Mine went first on the bottom, then soon all of the way up and the "wood" that my slide was made from soaked the drips up and disintegrated. Lots of work to fix. Search here for hose replacement and you will get quite a few ways to tackle t. Some prefer using a vinyl clear hose for a permanent fix. I did it with the fridge pulled inside because I wanted to do the annual maintenance items to keep it running well anyway. 4 screws inside, 2 screws outside and it slid right in.
33' 2008 National Tropical on a Freightliner chassis.RVM#189