I have a similar model and it seems to work okay and it's pretty quite while running. I used the water awhile back to distill nitric acid to refine some silver. I did get a small amount of silver chloride during the reaction, but that could have simply been from the beaker being wash with tap water...just my guess.I got this little number for free a few weeks ago from inside a property getting remodeled. I haven't tried it out, or tested the product yet, but it looks like it will be simple enough for me to distil tap water now. Hopefully no more buying gallons of "distilled" water from the grocery store. Has anyone used something like this for refining? I'm wondering if there will be any problems using distilled water from this thing.
I've never had the water tested after using it, so I can't say if any contamination came over with the water.