Tristate Fire Sprinkler on Instagram: "Over 90% of sprinkler failures happen because of human error, not equipment malfunction. Closed valves. Skipped inspections. Systems that haven’t been tested in years. The #1 reason sprinklers fail during a fire? The valve was shut off. Here’s what property managers don’t realize: Sprinkler systems aren’t “install and forget.” They require quarterly inspections, annual testing, and 5-year internal pipe inspections. Without maintenance, corrosion blocks pipe