When blow-out with compressed air is not feasible, what is another common winterization method?

When blow-out with compressed air is not feasible, what is another common winterization method?

• A. Using antifreeze in some systems.
• B. Draining and leaving dry.
• C. Filling with water.
• D. Submerging irrigation lines.

Answer: (A)

Winterization aims to protect pipes and components from freezing. When a blow-out with compressed air isn’t feasible, using antifreeze in the irrigation system is a common alternative because it stays in the water-filled portions and lowers the freezing point, stopping ice from expanding and damaging pipes, valves, and the backflow preventer. Use a non-toxic antifreeze approved for potable water systems (propylene glycol) and follow the manufacturer's guidance for how much to use and where to place it. This method is especially helpful for sections that can’t be drained completely. Draining and leaving the system dry works only if complete drainage is possible; filling with water offers no freeze protection; submerging lines would keep water in contact with them and can cause damage. Antifreeze avoids these issues by keeping a protective liquid in place through cold spells.

Winterization aims to protect pipes and components from freezing. When a blow-out with compressed air isn’t feasible, using antifreeze in the irrigation system is a common alternative because it stays in the water-filled portions and lowers the freezing point, stopping ice from expanding and damaging pipes, valves, and the backflow preventer. Use a non-toxic antifreeze approved for potable water systems (propylene glycol) and follow the manufacturer's guidance for how much to use and where to place it. This method is especially helpful for sections that can’t be drained completely. Draining and leaving the system dry works only if complete drainage is possible; filling with water offers no freeze protection; submerging lines would keep water in contact with them and can cause damage. Antifreeze avoids these issues by keeping a protective liquid in place through cold spells.