Quote Originally Posted by warfrat73
I'm with Pimp on that one. Reverse Osmosis is a water purification process that removes not only nasties, but also most trace minerals, which is why people say you need Cal-Mag when you use RO. Many of the purified water refill machine thingies at grocery stores use RO (at least around here).

You can also get digital thermometer/hygrometers at Radio Shack.

didn't think about that one. my bad.

*switch* for not usin' your dipstick, jimmy!