A sprinkler system can be complex with many different zones and valves. Some of those valves may be easily to locate. Others may be in more obscure locations. If there is a inadvertent sprinkler activation, or when maintenance or system modifications are being performed, it is imperative that sprinkler system valves be properly identified and can be quickly located.
There are many forms of documentation that can help manage this process including accurate drawings, valve charts, valve identification tags or labels or other documentation for the sprinkler system.