Hi, I'm putting in a new outside tap using 15mm soldered copper pipe.
While unlikely at this time of year, I am a bit worried it may freeze
in colder months if I forget to drain it. Obviously I could lag it,
but would simply putting in a short section of flexible hose, such as
that used for tap connections, help at all? Providing an expansion
zone so the pipe didn't burst...?

Cheers,

Ben