Caused stomach pain/digestive issues. Three of us drank the water exclusively from the water system all throughout the day. We noticed after about a year that each of us had developed stomach issues. I suggested we stop drinking it for a week and stick to our filtered water out of the refrigerator. All of our issues resolved within a week.

Great products, awesome customer service, works as advertised! Great products, awesome customer service! I have highly recommended CosanUSA's Pure Hydration and filtered bottle water container to my family and friends. The Pure Hydration is very easy to set up and works exactly as advertised. The water container is perfect to have when on-the-go. I even filter bottled water from the store just to have my drinking water at it's purest ph levels. (Most bottled waters I've tested were very low in ph levels) Customer service is easy to get in touch with and inquires were always professionally handled. These products are absolutely a great investment in keeping your body healthy! Check out their youtube comparison video: CosanComparison1

This machine does a good job on the… This machine does a good job on the extremely hard water in my area. I can’t fairly rate since the taste isn’t ideal, it’s tolerable when chilled. Cosan is simple to install, takes very little space very user friendly. For the price I would reccomend if your tap water isn’t too hard.

Affordable Affordable, had to pay to have it installed under sink leading to a separate faucet. Glad it is not sitting on my countertop. The filter that produces the H2 water seems to stop doing that before 3 months. This is disappointing, but I'm glad to have the H2 water some of the time.

This Pure Hydration system works great This Pure Hydration system works great. I've been drinking it for about 2 weeks now, and I feel much more energetic since i've been on it. Usually, by the afternoon I would feel very tired and sluggish, but ever since I started drinking this ionized hydrogen infused water, the afternoon's are not a problem, and I get a lot of work done now.