 And I also know that they can remove anything and everything that happens to be in that water that could cause harm to my faucets, my fixtures, the glass shower stall. Plus, you know what? A reverse osmosis filter under the sink will allow me to have great tasting drinking water, and I take all those plastic bottles right out of the environmental cycle. You should do this. Reach out to Erkins Water, erkinswater.com, 320-685-8762.