Hola, Kosika:
Yup. There should be a drain on it now a days, or at least a version of it with a drain.
These were used since the times when we had no running water or sewage.
First, people carried all their clothes down to the lake, made a nice pile of rocks at the shallow end, washed everything and carried it back home.
Then, people started to build these piles of rocks at home, and carried the water home, filling a big container next to their nice scrubbing rock. So no one else would get ther first and screw your day, waves would not destroy your work, etc.
Then, m