After our drill on "The Triangle" section of town, it was apparent that there are multiple areas within our jurisdiction that may be difficult or impossible to reach with our apparatus in a way that would allow attack lines sufficient reach. Yes, we could add length to those attack lines but another option may be available that could solve the problem but also add some additional benefits. We will use what we have and perhaps not in the manner in which it was intended. This scenario is definitely "thinking outside the box", but standing by "that's how we always did it" is a very anti-progressive rationale.
For splitting one line into two. Used at the fire scene to "dress" a hydrant thus allowing lines to be connected to a hydrant that is already opened.
Note the male threads opposite the Storz connection.
For combining multiple smaller lines into one. May have a internal clapper to stop from back flowing. (ours does not)
Note the female threads opposite the Storz connection.
For this drill, we will simulate a structure fire in an area were we have to place our apparatus on a main street, away from the structure and only accessible through a long, narrow driveway either due to construction, snow or both. We will run LDH down the simulated driveway to a 3 way Siamese appliance which we will configure as a 3 way gated wye by adding male-to-male fittings on each 2 1/2". From each of these 3 "outlets", a double wye, 2 1/2" line or 1 3/4" reducer can be added to give the engineer the set they desire. Since the "outlets" can not be closed individually at the engine, a firefighter with a radio must be stationed at the appliance.