i notice they have a reverse osmosis system on there.

I already have this at my house becuase are tap watter is very bad.

Does the water from a reverse osmosis have the things in it, like calcium and so on.
stoned88911 Reviewed by stoned88911 on . what is calmag? Title says it all What is calmag, what does it do, and what else can be used instead of it. Thanks you all so much for the many things you all help me with. Id be lost without cannabis.com Rating: 5