WELCOME! to the forum.!
You might try a hose cover to prevent rainout in the hose.
You can make one by cutting the toes out of old worn out socks, and sewing them together, making a tube out of them,to fit over your hose.
Put a rubberband on each end to hold it in place.
or you can get a hose cover at CPAP suppliers, check the suppliers list here on the board, at the top of each page.
Hang in there for more responses to your post and much success to you as you continue your CPAP therapy.
The humidity problem start when I start using my new mask type. Before nasal pillow I used nasal mask. Tonight I will disable the humidity option. I think my back problem is about the pillow mask. I think the pressure do something on my back. If i sleep without my cpap my back don't hurt. If I decrease the pressure I see the number of apnee increase but my back hurt less. Someone else have back problem because of the pressure ??
I switch my cpap pressure from 12 to autoset 10 - 15 and my back hurt less this morning. I also deactivate my humidifier.
I find my one shoulder and one hip will bother me a lot if I have enough arousals to wake me up more than once. I figure it has something to do wi th my body tensing up. YMMV