One problem is that you have to remove both attachments on each end of the hose.
My TT came with the short LP tank cover with the hatch to access the LP tank valves..
So for Christmas I asked my son for one of the taller LP tank covers that also has the hatch.
The local dealership only had Almond and not white. No big deal!
Then reverse the process after draining the holding tanks and packing up to leave.