I ended up returning my new Waterdrop unit because the taste of the water was just not what I got used to over the past 30 years of owning 5 different R/O systems, each in a different residence around the Las Vegas, NV area, and one unit I installed in my RV I spent the last 10 years in before moving into a house in Boulder City, NV. Your tankless system, the first one I have tried, is very efficient and easy to install, but the taste of the water was just not as good as the system I replaced it with, a tank system. Thank you for working with me on this experience.