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Using concentrated pressure, water is pushed through an RO (reverse osmosis) membrane: a semi-permeable, compact membrane that even micro-sized heavy metals, pesticides and volatile organic compounds (VOCs) can’t slip through. Heck, even fluoride and lead are out of luck. They all have a one-way ticket to the waste drain. A high-quality reverse osmosis system can remove up to 99% of the contaminants found in tap water. Some under-the-sink RO units, like Cloud RO, even add essential trace minerals back into the water. When it’s all said and done, your family can enjoy toxin-free, nutrient-rich, perfectly alkaline water every time. Read more about reverse osmosis here.
Simply put, alkaline water is water with a pH of 7 to 10. Your average tap water has a pH around 7. But when it comes to nutrition and the health benefits of drinking alkaline water, pH isn't the only piece of the puzzle... Alkaline water should also contain alkalizing minerals like calcium, magnesium, sodium and potassium. These minerals help the cells produce energy, fight inflammation, and support nearly every organ in the body. Cloud RO produces alkaline water by running purified water through a final remineralization stage. This process naturally raises your water's pH and adds back these trace minerals providing you with perfectly clean, perfectly alkaline drinking water. Read more about alkaline water here.
Yes! Cloud RO raises your water’s pH to alkaline levels by adding essential trace minerals like calcium and magnesium back into the purified water before it hits your glass. This process is called remineralization. These minerals are healthy, they help your water taste better, and they help deliver the alkaline water you are looking for! Read more about the alkaline filtration process here.
Cloud RO is really smart. Internal sensors track both water usage, and water quality. Unlike most competitor products we don't tell you to replace your filters every 6 months. That is an arbitrary timeline, and we know that every household is different. A family of six needs to replace filters more often than a family of two. So, what does that mean. It means that when your system needs a change we notify you and ship you out the necessary replacement. Easy peasy. On average a family of four you can expect to budget $200 per year, but again, this is an average and we promise to only get you replacement filters when you need them.
Kind of, not really… well, it’s complicated. The reverse osmosis process is one of the most powerful purification processes on earth. To answer the question, we need to take a step back to fully understand how the filter works. Using concentrated pressure, water is pushed through an RO (reverse osmosis) membrane: a semi-permeable, compact filter that even micro-sized heavy metals, pesticides and volatile organic compounds (VOCs) can’t slip through. All of the nasty toxins are forced one way, and pure water is forced the other way. The dirty, toxin ridden water, also referred to as grey water, is sent packing down your drain pipe. You are left with pristine drinking water. So, does Cloud RO waste water? Technically yes, the ratio of dirty water to clean drinking water is about 1:1. This is also the reason we only recommend using the RO process for drinking and cooking water supplies and not whole house systems. And while the dirty water is technically “waste” we would argue that grey water is unfit for human consumption anyhow. Read more about the benefits of reverse osmosis here.
An emphatic YES! From a water purification process, Cloud RO and bottled water filtration are likely similar. Most bottled water manufacturers use reverse osmosis just like we do. BUT bottled water lacks the regulation needed to ensure you and your family aren’t consuming harmful chemicals. Multiple studies have found that bottled water contains heightened levels of PFAs, microplastics, and even arsenic. Furthermore, plastic leaching can introduce harmful BPAs after the water has been bottled and sits in the container for days, months or years. Last, but certainly not least bottled water is causing an environmental crisis. Over 1 million bottles of waters are purchased every single minute, and 80% of those are not recycled. So, for yourself, for your family, and for the planet earth, stop buying bottled water and start filtering. Read more about bottled water toxicity here.
If you are a handy DIYer then yes, you can certainly install Cloud RO yourself. The process is straightforward and we provide detailed video instructions. Cloud has a unique modular design that makes self-installation much easier than other RO products on the market. With all plumbing related installations however, the risk of flooding is always a possibility. If you’re unsure if you can install, find a local professional to install your Cloud water filtration system for you. Rest assured that our Cloud Customer Happiness Team is always here to help. Email us anytime at support@cloudwaterfilters.com
Yes, a small drinking water faucet is required and is installed next to your main faucet. This faucet is included in your purchase and comes in a variety of styles and finishes to match your existing fixtures. The dedicated drinking water faucet can replace an existing soap dispenser, water sprayer, or plug. If you do not have one of these existing holes, a new one can be drilled. Drilling the faucet hole can be tricky and we recommend you source a professional for the job. Usually, the question we get next is, "Why doesn't Cloud just hook up to my main sink faucet?!" Well it's a good question and the answer is pretty straightforward. Cloud RO features super powerful reverse osmosis filtration, and this process is a bit slow. So, the filtered water is stored in a 3-gallon tank ready for you to drink. If you were using that same water for dishes and hand washing then you would run out of water pretty quickly. Secondly, reverse osmosis does create wastewater (more on that above). Using filtered water for household activities like dishes ends up wasting more water than necessary.
Cloud RO is currently in the process of obtaining NSF/ANSI 58 certification process. Tests will be performed regularly to confirm the system is removing all toxins and adding the essential minerals your body needs. For more information about the certifications please visit NSF/ANSI's site.
Cloud RO is now available! We have a limited number of units, so submit your order as soon as possible to ensure you are able to receive one. Can't wait to have you as part of the Cloud family!
Yes! Cloud RO uses a multi-stage process that includes reverse osmosis filtration. Reverses osmosis is one of the only filtration methods guaranteed to effectively eliminate PFAs (PFOA and PFOS) in your drinking water. Pitcher filters, refrigerator filters, and even whole-home systems have not been proven effective at removing PFAs. These "forever chemicals" are found in almost all municipal water supplies, and new EPA guidance has set the legal limit of PFAs in tap water near zero due to their known connection to cancer and birth defects.
Cloud RO removes all microplastics and nanoplastics from tap water and prevents plastic leaching. The plastic components within the system are all composed of food-grade, BPA-free, plastics. The system is composed of multiple filtration stages that trap microplastics and prevent them from reaching your glass. Microplastics range in size, but the smallest (nanoplastics) has a measurement of roughly 0.001-0.1 micron. Our reverse osmosis membrane has a pore size of roughly 0.0001 micron. So, the filter membrane is 10-1000x smaller than even the smallest nanoplastic. One question we often get is, "What about plastic leaching from the tank that holds the purified water?" Our tank is NSF 58 certified and the internal rubber bladder is heat-treated so that it does not leach plastic particles back into the water. Furthermore, our system is unique in that we utilize a carbon block post-filter. This final filtration stage sits after the tank and removes any microplastics that may have made their way into the water at any point after the reverse osmosis process. End result? Plastic-free, pure, healthy water, in your glass!
Cloud RO is powered by a replaceable battery pack. Just like the filters, the battery charge is tracked over time and a replacement pack is shipped out when you need one. The lifespan of the battery is 18-24 months and will likely be shipped alongside the RO membrane so you can replace them together. The battery pack allows for easy installation, without any need for a power outlet under your kitchen sink.
If you like ice-cold water that is also clean and delicious, then hooking up Cloud RO to your refrigerator is a great idea. When connecting to your fridge or ice maker there are a couple of considerations. Most important is the water pressure. Both your incoming water pressure and the distance the fridge is from your device come into play. If your fridge is reasonably close to your sink and your household water pressure is in the 40-80psi range you should have no problem. The other consideration would be the hookup location. If your fridge currently connects to your water line under your sink, or somewhere else that is easily accessible, then installation becomes less of a hassle. If the water line travels up from the floor or down from the ceiling, then installation may be more tricky.
The Cloud RO unit and tank are designed to save under counter space. The length of the unit plus tank (front to back) is designed to fit in any standard under-sink cabinet. A sink cabinet is almost always 24" deep, our unit is 21" deep. The width is just over 11", and will take up approximately 20-30% of the under sink space on a standard double-wide kitchen sink setup.
Cloud RO lives under your sink and connects to a separate drinking water faucet. Oftentimes this faucet needs to be installed by drilling a hole in your countertop or sink basin. In this case, you would need your landlord's permission to add the fixture. If a faucet, sprayer, soap dispenser, or existing plug is already in place, then installation should be no problem.
Yes, installing a new dedicated drinking water faucet is very common, but does require you to drill into your countertop or sink basin. A lead-free drinking water faucet is included in your purchase, with several styles and finishes available. The material you will be installing the faucet into will dictate the tools necessary for the job. If you are unsure about doing this yourself, then we highly recommend find a local professional for help.
Yep! They get $100 off a Cloud device, you get a free year of filter replacements, a $200 value. The more friends you refer to Cloud the more free years you get. Copy and share your unique referral link found in your account.

And if you can't find an answer here, the best way to get contact us is via email. We're happy to assist you in any way we can.


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