Waterdrop CoreRO Countertop Reverse Osmosis System, NSF/ANSI 58 & 372 Certified, 6-Stage, Portable Reverse Osmosis Water Filter, Reduce PFAS, No Installation Required, BPA Free, WD-C1S

WOW! This is a great countertop RO system. I researched various hot-cold under counter and on counter systems and decided to go with this model and glad I did. The unit doesn’t take that much space on your counter and looks streamlined and super modern. I couldn’t really find that much info on it besides the reviews here and a couple of YouTube videos but still decided to give it a shot.Setup is super easy and does take a full twenty minutes if you stand by the machine and follow its cues. I believe I had to fill the tank twice and the machine does the rest. I had bought a tds tester before this arrived and had verified my taps tds level which was also spot on from Waterdrops website zip code analyzer. My tds was showing 147 meanwhile the water from the Core Ro was coming out under 20 ppm! The water tastes crisp and pure! No weird smells or aftertaste. I do use a single stage Waterdrop under counter filter to fill my water although these type of filters do not change the tds levels. I am actually going to be removing the single stage and upgrading it to the a 3 stage filter system just for added precaution. This will also give me way better water at my fridge which will be connected to it. It might be habit but I still find myself reaching inside the fridge for water sometimes and of course ice cubes. This will help provide overall better water from both sources.The best part of this purchase was that it eliminated me having to use my Keurig maker for hot water which I hated doing due to the water sitting there and being warm in the tank all the time. So now I get clean pure filtered room temp water virtually all day long, and I also get hot water in the morning for tea and coffee. I usually refill the tank once a day. With that said I do wish the touch screen would tell you real time tds levels but it will only flash red when high tds levels have been detected which usually means it’s time for a new filter. A word of caution with this system. When the tank needs to be refilled the screen will blink “out” do not refill the tank without first dumping the remaining water left at the bottom. That is basically your waste water and the tds levels on that water was over 500 ppm. This is definitely not really apparent at first but then a light bulb went off in my head and I realized it after I refilled my first tank. Waterdrop also claims you can void your warranty by not dumping the remains water first before refilling the tank with new tap water.One minor drawback is having to slide the system forward a little bit to remove the tank and also remove the freshwater tank since I keep it under my upper kitchen cabinets. I placed a bamboo mat under it and not it easily slides forward so problem solved. I did see some will put small appliance sliders under the appliance to make it easier as well.I would highly recommend this countertop RO system for a small family or couple. I did buy a second water tank to keep in my fridge or counter for larger volume fills. In the end it was between the Core RO and the Waterdrop under counter RO system which was significantly more expensive. I think this is a good start and best of all the system can be moved and taken anywhere.

Likes:- compact size- quiet operation- helpful setup interface- easy to use- water tastes greatI had a different RO system but apparently they quit selling filters for that model. I decided to go with a better known brand this time. The plastic feels a tad cheap but overall everthing is built well and works fine. I really liked how the machine walks you through the setup process to do it correctly. It also helps to read the well-written user manual. I plan to stay with this machine/brand indefinitely, as long as everything works well.

Wonderful little gadget. I have well water, but pre-treat with a sediment filter and water softener. TDS (total Dissolved solids) were over 250, which ruined the flavor of coffee or tea. The treated water was delicious and refreshing .This device says it reduces TDS to 4, though it rose slightly as the reservoir emptied. The purified water can be dispensed or poured into another container, convenient if a lot is needed at one time, as for a dinner party. It works better than a Brita style filter. Our local wells contain high levels of arsenic, which causes heart disease with chronic exposure. A carbon filter doesn't remove arsenic. Reverse osmosis does the job.

The Water drop it looked great and worked great for three days only!The water was no longer drinkable!I thought it was weird when I set it up I had to flush it four times to get it at 100% without getting sediments/cloudy water.1. Pump code was on.2. Water was not draining out.3. Making a loud noise.So then I drained it removing everything until the next day.Then refilled it all over again, Having to flush it three times until the cloudy mess was gone.it’s was at 99% and there’s still sediments floating in my drinking water.I’m disappointed it doesn’t work!I’m returning it!After reading the reviews people stated they did not receive their refunds…, really?Now I wish I would’ve read the reviews before making this purchase.

So far very pleased with this countertop reverse osmosis system. As someone who attempts to keep hydrated throughout the day, this has been a great addition to the home. The system is easy it was to install. Instructions were clear and concise, and the whole process took less time then expected (30ish minutes) from start to finish. It's compact design makes it perfect for any kitchen, and it doesn't take up much space on my countertop.The quality of the water itself is good. After testing the water independently, are satisfied with the about of removed impurities and contaminants. The system is also more convenient then frequently refilling a pitcher, which we had for years. The maintenance of the system is also very straightforward. The filter changes are easy and quick, and Waterdrop offers customer service, although this is a service I have not used at this time. One advantage we hope to see is its long-term cost-effectiveness. After using pitcher filters for years, it definitely adds up.Overall, I recommend this countertop reverse osmosis system to anyone looking to enter the reverse osmosis arena. So far it has been a reliable and efficient way to purify my tap water at home at a reliable speed.