Go buy one of the simple ones from Aquarium pharmeceuticals...
I've been suing one for 8 years or so now.

You wont find many people who use them in B.C> (where tds in water is generally low) with complaints.

I think they retail for around 50$ with replacement cartridges around 30$.

awesome... i think im gonna go with the vertex puratek 100, thanks guys :biggrin: