I know that this has been asked several times, But I have been unable to get specific information. i HAVE A 2016 kEYSTONE COUGAR 1/2 TON SERIES model 277RLSWE with a extendable bumper. Do I have to extend the bumper to find the fresh tank drain valve? If someone knows the location please respond. The tank fill is at the drivers side rear along with the pump. I've looked underneath and cannot see any valve to drain the tank unless it is hidden under the extendable bumper. Anyone with this model 5th wheel, I would like to hear from you. Any help appreciated.
Mel