Quote Originally Posted by Xei View Post
This invention doesn't work by electrolysing the salt (I don't think so, anyway), it works by electrolysing the water into hydrogen and oxygen... a process in which the water effectively conducts electricity. I don't see any reason other ions need to be included to allow this to happen...

Pure water actually has a small ionic component; there's an equilibrium between the water molecules and hydroxide and hydrogen ions.
Xei, H2O practically can't conduct electricity.

http://en.wikipedia.org/wiki/Electrical_conductivity

Look at the conductivity of water, compared to drinking water. Extremely low.