Sprinkler piping must be substantially supported from the building structure. What weight must this structure support for water-filled pipe?

Sprinkler piping must be adequately supported to ensure safety and functionality. When a pipe is filled with water, it becomes significantly heavier than when it is empty, and this added weight must be considered in the supporting structure.

In most plumbing codes and standards, the weight that the support structure must be capable of holding for water-filled pipe is typically around 250 lbs per segment. This standard provides a reliable margin to account for the weight of the pipe itself, the water inside, and any additional factors such as possible pressure fluctuations or thermal expansion that may exert more force on the supports.

Choosing this figure helps in maintaining the integrity of the sprinkler system over time, avoiding sagging or failure of the piping. Thus, the correct answer regarding the support weight for water-filled pipe is indeed 250 lbs.