 Does the sacrament take effect, one, and then two? You know, what would you say to a grandparent who's considering that? Well, yes, the sacrament does take effect. What's needed is to intend to do what the church does with flowing water in the Trinitarian formula. So even an atheist can baptize, even an unbeliever can baptize someone in danger of death. But the ordinary form, you intend to do what the church does