A reviis of water [is the minimum amount] for washing hands for one [person] and even for two [people]. A half-log [is the amount] for three or four [people]. From a log [and more] is [the amount] for five, for ten, or [even] for one hundred [people]. R’ Yose says: Provided that there is no less than a reviis for the last of them. One may add to the second [waters], but one may not add to the first [waters].

One may pour onto the hands from all [types of] vessels, even from dung vessels, from stone vessels, [or] from mud vessels. [But] one may not pour onto the hands from the walls of vessels, nor from the bottom of an earthenware bucket, nor from the cover of a barrel. Nor may one pour onto [the hands of] his friend from his [own] cupped hands, because we may not draw [water for mei chatas], nor may we consecrate [mei chatas], nor may we sprinkle mei chatas, nor may we pour onto the hands except with a vessel. And nothing with a sealed cover can protect [its contents from tumah] except vessels, and nothing can protect [foodstuff from contracting tumah] from an earthenware vessel, except vessels.

[Regarding] water that became unfit for an animal to drink, [if it is] in vessels, it is invalid. But [if it is] in the ground, it is valid. [If] ink, gum, or copperas fell into [the water] and its color changed, it is invalid. If one used [the water] for [any manner of] work or [if] he soaked in it his bread, it is invalid. Shimon the Timnite says: If he intended to soak it in this [water] and it fell into a different [water], it is valid.

One who is separating terumah from a pit, and he said, ‘‘This is terumah on condition that it comes up without mishap,’’ [he means] without the mishap of breaking or spilling, but not [the mishap] of tumah. R’ Shimon says: [He means] even [the mishap] of tumah. [If] it breaks, it does not create meduma. Until where can it break and not create meduma? As long as it can roll and [still] reach the pit. R’ Yose says: Even one who intended to stipulate but did not stipulate, [if] it breaks it does not create meduma, since this is a stipulation of the court.