Canadian tire TDS meter

[justinl]

oka yeah, i wasn't clear with my previous post. That's exactly what i meant. i know the aquarium label makes everything a lot cheaper... that's why half the hobby is dedicated to DIY and other ways to avoid buying things from the lfs at all cost. I would also like to see several comparison trials done on tap water of differing TDS levels to be sure of both precision and accuracy. i would be fantastic not to have to buy those ridiculously priced tds meters at the lfs.