Chapter 8, Mishna 8, 9 and Chapter 9, Mishna 1
Why did Rabbi Chananya ben Akavya permit the residents of the Sea of Galilee to dry themselves with towels on Shabbos? May we do the same? May we pour out water from our balcony on Shabbos in the same way that we draw water in? How much waste water may we pour into a shared courtyard? Why is the answer different in the rainy season? Are rooftops different from houses with respect to carrying on Shabbos? What about courtyards and other enclosures?