Not typical for stairway standpipes
We were recently going through a large senior residential occupancy. This occupancy has 7 wings and several different stairwells.
Not all of the stairwells have standpipes in them. Most were typical connections with a valve and 2 1/2 inch connection. As you can see in this picture, this one was not a typical seen in a stairwell.
At the left of riser you can see the standpipe connection. They basically put the sprinkler room in the stairwell.
If you weren’t familiar with this, a person might just start turning valves or just think that there is not a standpipe connection at all.
The point here is that not all standpipe connections are created the same. Nor are all sprinkler rooms in a closet.
Get to know your buildings and the systems that operate in them. You never know when you will need to use them.