Stop your drain pipe from freezing with this simple Letsfixit guide. Most homes have either CPVC, copper or galvanized water supply pipes. However, if any of these three types of pipes are not adequately insulated, or if there is a heavy freeze, the water inside the pipes can burst creating extensive damage in the home. Draining the pipes is always the best bet against bursts, especially when leaving the home vacant for extended periods of time. The draining process is fairly simple to do and isn’t time consuming.