Main water shut off.
Commercial buildings have a lot of supply lines under pressure throughout the building. Do you know where all the shut offs are located? Sinks, showers, toilets, water heaters, hose bibs, utility sinks, kitchen areas... They all have individual shut offs or they should. These lines are under pressure. Usually around 60 PSI.
A broken 1/4" supply line under 60 PSI will leak 9 gallons per minute 540 per hour or 12,960 gallons per 24 hours. That's right! What to do when it breaks and sprays? Shut off the supply valve or the main supply. The main is usually in a locked mechanical room in the basement. Figure this out before a line breaks.
Shutting off the water supply is the first thing to do in an emergency water loss event. Then call your plumber for repairs and SERVPRO for cleanup. We are always ready 24/7 to help keep your building operational.