What is the purpose of installing auxiliary drains in a sprinkler system?

The purpose of installing auxiliary drains in a sprinkler system is primarily to remove stagnant water and prevent freezing. Over time, water that remains in the system can become stagnant, which can lead to various issues, including the growth of bacteria and mold. Stagnant water is also susceptible to freezing in colder temperatures, which can cause damage to the system, such as burst pipes. Auxiliary drains are strategically placed to facilitate the removal of this water, ensuring that the system remains operational and reducing the risk of malfunctions during an activation of the sprinkler system. This preventive measure is crucial for maintaining the integrity and effectiveness of the fire protection system.