It was discussed on here before, i believe. It just takes away the corrosion. But yes, i think you shouldn't go around dunking it but rather have it just in case. I think it works. Pretty cool.
How is using distilled water any safer that regular water?It is a scam. A member on here paid them with fake details and the payment was "successful" and they gave him the all clear to send his iPhone away to them. They also are using distilled water in their vids. Fake