A few months back my SIL got everyone worked up about some chemical in Atlanta's water. (the Erin Brockovich cancer chemical). So I ended up buying a reverse osmosis water filter.

https://www.wattspremier.com/products.php?product=RO-PURE-%28RO%252d4%29-Reverse-Osmosis-System

Brought it home, DH got frustrated installing it, returned it the next day.

If you have one, which do you have? Is it easy to install? Is it reverse osmosis (apparently RO filters out the cancer chemical).