“Nevertheless a spring or a cistern in which water is gathered shall be clean, but that which touches their carcass shall be unclean.”
Leviticus 11:36 (WEB)
Context Reading
34All food which may be eaten which is soaked in water shall be unclean. All drink that may be drunk in every such vessel shall be unclean. 35Everything whereupon part of their carcass falls shall be unclean; whether oven, or range for pots, it shall be broken in pieces. They are unclean, and shall be unclean to you. 36Nevertheless a spring or a cistern in which water is gathered shall be clean, but that which touches their carcass shall be unclean. 37If part of their carcass falls on any sowing seed which is to be sown, it is clean. 38But if water is put on the seed, and part of their carcass falls on it, it is unclean to you.