They work, but most use tap or salt water and wind up with a soluble metal hydroxide as the alkaline part vs OH[-] ions which a CS gen makes by default along with the silver ions.

Much cheaper to put a few crystals of Draino in a glass of water.

No reason to not keep the Ag[+] and OH[-] {"Alkaline water"} apart that I know of.

Ode

At 08:09 PM 5/14/2012 -0700, you wrote:
Do DIY alkalizers like this really work?
<http://www.instructables.com/id/Water-Alkalizer-or-Ioniser-for-5/?ALLSTEPS>http://www.instructables.com/id/Water-Alkalizer-or-Ioniser-for-5/?ALLSTEPS

Sounds like a big money saver over commerical products. Assuming they have value to begin with.

Also, if one used silver electrodes instead, and distilled water, and removed the sponge in the middle, what would be the result? (assuming suitable parts to avoid significant contamination were available). The sponge is presumably to prevent the remixing of the water on either side. But that would destroy any possibility of getting abundant silver ions.

David