Zochlin: Difference between revisions

Similarly, the Rebbe Tzemach Tzedek discusses a mikvah that has a hole in the bottom of its wall toward another mikvah, such that after several hours a large part of the mikvah water is destined to exit and enter the second mikvah. He questions whether all the water that is destined to exit should be considered "zochlin," and he determines that this depends on the aforementioned dispute among the Rishonim. According to Rabbeinu Shimshon, the mikvah would be invalid since the immersion also occurs in the invalid waters that are destined to exit, and according to the Rosh, as long as the waters have not exited - they are valid. But if most of the mikvah waters are destined to exit in such a way, the mikvah is invalid. Therefore, he recommends making a hole the size of "k'shfoferet hanod" (which has room for two fingers from each side of the hole) that will cause the two mikvahs to be considered as one, and consequently the flow between one and the other would not be considered "zochlin."