Join Date: Sep 2007
My Motorhome: Frankia Platin I8400QD
Thanked 22 Times in 18 Posts
I do much the same except for two things:
1) I don’t bother blowing into the shower head - any small amount of water left in the pipes can freeze without damage AS LONG AS you . . .
2) Leave ALL OF THE TAPS OPEN in the mid position (Your guidance closes them after after a few hours except for the shower?).
Freezing water in pipes expands - when it runs out of space to do so, something has to give. Leaving the taps open ensures adequate expansion room. This method has worked for me on caravans/Motorhomes for over twenty years.
If only I could think of an original, witty signature . . . this is where it would be . . .