I have the same hose and have never had a problem with stuff building up in it.
If you feel there is mold or other gunk building up I would soak in a weak solution of dish washing liquid for about 1/2 to 1 hour and then rinse very well. I agree about hanging up to drip dry, it will just get wet again when I use it at night.
I prefer to hang the hose up in the kitchen rather than the bathroom - just me.
Diagnosed: 44 AHI when supine, O2 down to 82%
Treated since 20 Sept 2014:: 0.7 AHI, Settings 7-15, EPR on Full Time at Level 3
Better living through CPAP/APAP machines!