What is the minimum length of a dead end in plumbing?

The minimum length of a dead end in plumbing is defined to be 2 feet to prevent issues such as water stagnation and the potential for contamination. A dead end occurs when a pipe terminates without an outlet, and having a minimum length helps ensure that there is sufficient space for water movement. This length also considers the volume of water that may remain stagnant in the pipe, which could lead to possible health hazards and unsatisfactory performance of the plumbing system. Keeping the dead end at least 2 feet helps promote better maintenance of water quality and prevents problems associated with shorter dead ends, which might not provide adequate drainage or lead to blockages.