If you've got bluish/green water and you don't live on the beach in Cancun Mexico there's a chance you have copper in your water.

Copper can find it's way to your household water several different ways. But whether it's coming from natural deposits or your plumbing it's important to note that at high enough levels copper can have adverse effects on your health such as Gastrointestinal irritation.

If you have copper in your water you need to consider a Reverse Osmosis System such as the APRO5500