I purchased a Nuvo H2O a year or so ago. The concept sounded great and sound and I needed to deal with hard water at my home. I have used salt remedies before and this remedy sounded better. I really liked the idea of a 90-day money back guarantee too. Sounded like I would be covered if it didn't work.
I spoke with a salesperson at the company and they assured me it would work and that the cost would be minimal to have it installed.
Everything sounded great, so I spent over a thousand dollars to buy the system and a couple of additional filters.
I received it and quickly found out that some of what I had been told was wrong. The actual cost to install the system was something like $600. So, right there I was out significant money if it didn't work because I had to install it to try it. Wish they had not glossed over that fact. Keep that in mind when you think about their free return policy - it is not free at all and practically speaking, it would almost cost more to return it than to just keep it in place if it doesn't work.
And, it doesn't work. I have hard water that leaves deposits on fixtures. When I don't have anything that I use to soften the water, the buildup is very easy to see. Every so often, I go through the hassle of clearing off the calcium/hard water deposit buildup. Big pain. Well, when I started using the NUVO system, I cleaned off the deposits on several fixtures and expected to never have to do that again. WRONG. The system does not work. The hard water buildup came back just like before. Same problem - not solved at all. I thought I might be wrong, so I cleaned the fixtures off again only to find out that for a second time, all of the buildup came back. And, I did it a third time. I can clearly tell anyone interested in this that it does not eliminate hard water buildup.
The other problem - by the time you figure all of this out, you've already spent a lot of money to install the system, you're long past the 90-day period, and you don't really want to pay the money to have the system uninstalled.
Do not buy this system. If you really need to get rid of your hard water, then go with the tried and true salt-water systems that are cheap and at least in my experience, they work.
Hope this is helpful for potential purchasers of the system.