For a multiple-process application that uses the ``os.fork`` system call, or
for example the Python ``multiprocessing`` module, it's usually required that a
-separate :class:`.Engine` be used for each child process. This is because the
+separate :class:`.Engine` be used for each child process, or
+that the :meth:`.Engine.dispose` method is called at the start of
+the process to flush existing connections. This is because the
:class:`.Engine` maintains a reference to a connection pool that ultimately
references DBAPI connections - these tend to not be portable across process
boundaries. An :class:`.Engine` that is configured not to use pooling (which