tap water

[Lampshade]

Most area's have ground water test reports. Check out your city page and they should have some. You can see what the TDS is, as well as more tests than we run in our tanks. Most places around here the ground water is good, and the stuff that's actually in there is also in our salt mixes, making it very good. I run RODI because after a couple lead and copper pipes I'm worried about my houses contamination in the water.