I responded to an ad for free water testing. Of course, the testing is
designed to scare you into buying a whole-house reverse osmosis system
for over $3,000. But one thing the guy did scared me.
He took two drinking glasses and filled one with water from my Brita
container and the other with water he brought along that supposedly is
from the output of the system he's trying to sell me.
He had a electrolysis gadget, about 9" long by 1.5 x 1.5 with two pairs
of electrodes. He stuck one pair in each glass, plugged into a wall
outlet, and turned it on. After 15 minutes or so, the garbage that was
in the Brita water was scary; his water glass was only slightly tinted
yellow. I pointed out that one electrode of each pair was eroded. He
offered to swap the glasses and repeat the test, but I declined.
I measured the voltages across each pair of electrodes: 240 VAC and 110
VDC. The unit had a decal on it that says waterfilteronline.com, but
when I went to the site there was no such product. And their tech
support guy had no idea what I was talking about.
So what was all this garbage in the electrolyzed Brita water? I'm sure
it was a scam; the guy left nothing in writing about his measurements,
insisted the electrolyzed water samples be poured down the drain and
didn't even leave a business card or other way of contacting his
company, Florida Water Analysis.