Answer is simple. If you have a high quality water filtration system, the water from every tap in your home is as high as and in some cases better than any drinking water you will find in a plastic bottle. You can stop buying expensive bottled water and drink safely straight from the faucet. You can purchase reusable bottles and fill those with good tasting tap water. Now you wont be throwing away the plastic bottles and adding to the 38 billion plastic water bottles put into landfills each year. We have a serious environmental problem and one helpful win-win way to address that problem is to purchase a whole house water filter system.