Quote Originally Posted by tajoh111 View Post
How is pentosin compared to this stuff. I know pentosin probaly doesn't have as good of thermal properties as distilled water, but I heard nothing can grow in it.
Err, well, Pentosin really isn't meant to be a biocide... It's basically VW/Audi/BMW/Mercedes antifreeze. It does have some biocidal properties which keep some things from growing in it, but certainly not all (then again, there's stuff that is immune to Copper sulfate and stuff that's immune to Benzalkonium chloride... so... yeah... hypochondriacs beware).