How to maintain outdoor swimming pool covers and other equipment in winter?

It feels so early in winter. How to maintain outdoor swimming pool cover equipment in winter? Most of them are installed in the spare room, but some of them are installed outdoors. Seasonal maintenance and antifreeze treatment must be protected. The volume of swimming pool equipment will expand significantly during the freezing and freezing process of water. Once the water in the water treatment equipment and pipeline freezes, it will directly burst the water passing part of the equipment and the pipeline, which will cause certain economic losses. Outdoor equipment and pipelines must have anti-freezing measures. They can be wrapped with straw ropes wrapped in plastic film for insulation, or wrapped with 1.2---1.5cm thick insulation cotton or insulation cotton pipes, and the joints are tightly wrapped with tape. Swimming pool equipment regularly discharges sewage as required to prevent stagnant water from freezing and cracking equipment and valves. Out-of-service, spare equipment, and glass fiber reinforced plastic tanks should be cleaned with bottom water, and the out-of-service water pump can be disassembled, put into inventory after oil maintenance, and installed in the coming year for the system to use.