This is probably the dumbest thing I’ve heard. You clearly have no idea what you’re taking about. To find the leak they need to spray the outside with soapy water. If that doesn’t work the next step is to put the ISS in a bathtub and fill the bathtub with water
Clearly you’re thinking with your feet, because if you used your brain you’d know you bring the ISS to the bathtub, not the other way around