True or False: Only factory premixed solutions are allowed for antifreeze in sprinkler systems.

The statement that only factory premixed solutions are allowed for antifreeze in sprinkler systems is correct. This requirement is in place to ensure that the antifreeze used is specifically formulated and tested to be compatible with fire protection systems. Using factory premixed solutions helps to guarantee the appropriate concentration and chemical composition, which are critical for effectively lowering the freezing point of the water without compromising the system's integrity or performance.

Using non-factory premixed antifreeze could lead to issues such as inadequate freeze protection, chemical reactions with system components, or alterations in the fluid's characteristics that could affect the sprinkler system's functionality. Additionally, adhering to manufacturers' specifications can also help ensure compliance with relevant codes and standards, which emphasize the use of tested and approved materials in fire protection systems.

This is contrasted with alternative options that suggest flexibility in the type of antifreeze solution that can be used or that depend on specific conditions. Such flexibility could pose risks in terms of system safety, reliability, and compliance with engineering guidelines. Thus, the emphasis on factory premixed solutions ensures a standardized and safe approach in the application of antifreeze used in sprinkler systems.