Well, it is close to that time of the year when for whatever reason some people decide to close their hot tubs for the winter. Here is the preferred way to winterize a hot tub. We feel that winterization should be left to the pros, and when done carefully using the following instructions your risk of damage from freezing can be minimized! Please note products don’t warrant against freeze damage in a tub that has been winterized, either by the owner or by a professional service center.