Nevertheless a fountain or pit, wherein there is plenty of water, shall be clean: but that which toucheth their carcase shall be unclean. A fountain or pit, etc. - This must either refer to running water, the stream of which soon carries off all impurities, or to large reservoirs where the water soon purifies itself; the water in either which touched the unclean thing, being considered as impure, the rest of the water being clean.
Related Commentaries of Leviticus 11:36
Leviticus 11:36
36 Nevertheless a fountain or pit, wherein there is plenty of water, shall be clean: but that which toucheth their carcase shall be unclean.