The junction extended me an underground cable that has been laid unfortunately too short for the construction. The Monday is self-explanatory - fortunately, as the manual is not the most complete. Absolutely you should note before the arrow, as well as the inner workings is set to one direction. This avoids, again having to reconnect, because the tube is otherwise no longer be to impose.
The box itself can look very sophisticated, has thick and movable rubber gaskets and is quite thick-walled. Keeps now for two weeks in outstanding digging strongest rain, so I do not trust the thing enough to dig the earth now about it.