NFPA ban antifreeze in fire sprinkler systems

The NFPA have issued a safety alert and recommends the residential fire sprinkler systems which are filled with antifreeze should be drain and refilled with water.  This safety alert was issued after an incident with a residential fire sprinkler installation involving a grease fire in a kitchen which resulted in a fatality and one other person been serious injured.

You can read the full article at NFPA