yes just leave it like that in the mean time, it can still freeze though so you'll need to keep an eye on it. look into getting some insulation, you can buy it in diy places or a plumbers merchant, it'll be 22mm / 3/4" insulation you're looking for. the insulation doesn't work in really extreme cold, but it's good most of the time, and it's cheap.
Ian
January 2010