King James Version
Nevertheless a fountain or pit, wherein there is plenty of water, shall be clean: but that which toucheth their carcase shall be unclean.English Standard Version
Nevertheless, a spring or a cistern holding water shall be clean, but whoever touches a carcass in them shall be unclean.New International Version
A spring, however, or a cistern for collecting water remains clean, but anyone who touches one of these carcasses is unclean.