If one places his eruv in a gatehouse, a colonnade or a gallery, the eruv is not valid; and one who lives there does not restrict it. In a silo, barn, woodshed or storehouse, the eruv is valid; and one who lives there restricts it. R’ Yehudah says: If the owner retains a holding there, he does not restrict him.

One who left his house and went to spend the Sabbath in another town, whether a gentile or a Jew, restricts — [these are] the words of R’ Meir. R’ Yehudah says: He does not restrict. R’ Yose says: A gentile restricts, a Jew does not restrict, for it is un-usual for a Jew to return on the Sabbath. R’ Shimon says: Even one who left his house and went to spend the Sabbath at his daughter’s [house] in the same town does not restrict, for he has already dismissed [any thought of returning] from his mind.

If a cistern is between two courtyards, we may not draw [water] from it on the Sab-bath, unless they made a partition for it ten fists high, whether above or below, or within its walls. Rabban Shimon ben Gamliel says: Beis Shammai say below; but Beis Hillel say above. R’ Yehudah said: A partition should not be more effective than the wall that is between them.

If a canal passes through a courtyard, we may not draw [water] from it on the Sab-bath, unless they made it a partition ten fists high at the inlet and at the outlet. R’ Yehudah says: The wall over it is considered a partition. Said R’ Yehudah: It happened that [there was] a canal in Avel from which they drew [water] on the Sab-bath upon the ruling of the Sages. They answered him: Because it did not have the minimum dimensions.