??? ppm ???

[urbanhighlife]

so i know what ppm stands for or at least i hope i do (parts per million). but what exactly are the parts that im testing for? also i was wondering if any one knows if you can get a tester that will tell you what is in your water?

 

[Mutt]

This is decent link I just found.
http://www.waterfiltersonline.com/tds-sources.asp
Hope this helps.