Best Reverse Osmosis System Reviews in 2016


    Water is the most important essence of life. More than two-thirds of the human body consists of water and the access to clean drinking water is a human right. It guarantees that you and your family stay healthy and fit. Unfortunately the supply of clean drinking water can be difficult, even in the western world.

    A good reverse osmosis water filter system guarantees that you have access to clean, clear and great tasting drinking water at all times.

    But what makes a good reverse osmosis water filter system and what do the best reverse osmosis systems have in common? This extensive guide does not only tell you what features to look for to find a reliable RO system, but also provides you with a best of list.

    intro img best osmosis water filter systems

    The Best Reverse Osmosis Systems

    • Home Master TMAFC Reverse Osmosis System (made in USA)
    • sterne
      Amazon Star Rating
    • Price: $$
    • Water Purity: 98%
    • Filtering Stages: 7
    • Gallons Per Day: 50
    • Easy Installation, Toolfree Filter Exchange
    • Permeate Pump + 5-Year Warranty
    • Our Overall Rating: 94.25%

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    • iSpring RCC7 - RO System with Faucet (made in USA)
    • sterne
      Amazon Star Rating
    • Price: $
    • Water Purity: 99%
    • Filtering Stages: 5
    • Gallons Per Day: 75
    • High Longevity, Fast Fill-Up
    • Brushed Nickel Faucet + 30-Day Money Back Policy
    • Our Overall Rating: 92.5%

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    • APEC 5-Stage Reverse Osmosis System (made in USA)
    • sterne
      Amazon Star Rating
    • Price: $
    • Water Purity: 99%
    • Filtering Stages: 5
    • Gallons Per Day: 50
    • Low Noise Level, A++ Efficiency
    • Luxury Faucet + 1-Year Warranty
    • Our Overall Rating: 94%

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      Read the full review on this page!

    Important Aspects to Consider when Purchasing a Reliable RO System

    There are some important key aspects you need to consider when you want to purchase a reliable RO system, in order to prevent yourself from making a wrong buying decision and end up with a second-class filtration unit that is not up to standards.

    In the following page section, we listed those key aspects to guide you through the decision making process...

    Brand, Manufacturer & Certificates

    Talking about consuming clean drinking water is talking about staying healthy and fit, which is why it's vitally important for you to rely on an American recognized brand and a manufacturer based in the US, when purchasing a reverse osmosis system. Usually, these systems filter out at least 98 percent of water impurities.

    Additionally, you should pay special attention to FDA (Food and Drug Administration) and NSF certificates. They ensure that the water processed by a system is of high quality and 100 percent safe for human consumption.

    Furthermore, additional WQA (Gold Seal) certificates guarantee that a reverse osmosis filtration unit operates at low noise levels and requires only little to no maintenance.

    The Filtration Process

    With great RO systems, in the filtration process the water usually runs through at least 5 filtration stages, before it is ready to be consumed.

    At stage one, a sediment filter removes soil particles and dust, followed by one to two carbon filter stages, which remove chemicals, such as chlorine and fluoride, odors and tastes.

    The next stage involves the reverse osmosis process itself to filter out all remaining contaminants. Last but not least, a coconut shell refining filter removes residue taste.

    More expensive reverse osmosis systems tend to have additional processing stages to re-mineralize the water by adding bits of magnesium and calcium balancing pH-levels and creating a great taste.

    System Installation and Filter Replacement

    Not all of us are gifted do-it-yourselfers. But excellent water filtration units allow for easy installation and part adjustment without complications.

    Depending on the system, replacing a filter may be a difficult endeavor and paying for the new filter costs some money. Therefore, seek for a reverse osmosis system with long-lasting filters that can be installed easily.

    Side Note: If you live in a larger household, you might want to look out for bigger membranes as they extend a unit's longevity and shorten the time period that is needed to fill up the water tank.

    Don't Waste Water, Save Money!

    Top notch reverse osmosis water filtration systems not only provide a consistent flow of clean drinking water, they also prevent water from being wasted, too, by automatically shutting down the system once the tank is filled completely. These systems help you to save money!

    APEC 5-Stage Reverse Osmosis System

    What We Like

    First of all, the APEC 5 Stage Reverse Osmosis Water Filtration System is produced in the US. The system's filters are long lasting and outlive most filters of other brands. APEC provides not only a one-year satisfaction guarantee, but also lifetime product support.

    NSF and WQA certificates guarantee that not only the water is 100 percent safe for human consumption, but also that the system operates at really low noise levels. Above that, the WQA Gold Seal assures the product's excellent performance, quality and durability with only low-maintenance requirements.

    •    Price: $
    •    Water Purity: 99%
    •    Filtering Stages: 5
    •    Gallons per Day: 50
    •    Warranty (Years): 1
    •    Shut-Off Function:

    The APEC 5 RO system has great built-in features, such as a steel-free storage tank to maintain the water's quality as well as a clean and natural taste. An automatic shut-down prevents water wastage once the storage tank is filled completely.

    Additionally, 5 filtration stages process the water removing 99% of all contaminants. The filters remove soil particles, dust, rust, chemicals like chlorine, odors, tastes and provide a consistent and unlimited water supply for you.

    What We Don't Like

    Customers criticize the membrane filter housing, which is difficult to open. Moreover, at filtration stage three it may take a while to get rid of carbon floating on the water surface.

    Our Verdict

    The APEC 5 Stage Water Filtration System is the #1 best selling RO system on amazon. It provides clean, clear and great tasting drinking water with almost no impurities left. The price-performance ratio is great, which is reflected by a 96% amazon customer satisfaction.

    Home Master TMAFC Under Counter RO System Review

    What We Like

    A seven-stage filtration and purification process makes the Home Master TMAFC Reverse Osmosis Water Filter System one of the best water filtration units available in the US.

    The system's filters have a one-year performance span (or 2,000 gallons) and are incorporated into the housing using a ‘all-in-one’ design, which makes the annual filter replacement fast and easy. When replacing the filters, the entire housing is disposed off including sediment, microorganisms and biofilm. This prevents not only canister leakage or failure, but also disease-causing germs from accumulating.

    •    Price: $$
    •    Water Purity: 99%
    •    Filtering Stages: 7
    •    Gallons per Day: 50
    •    Warranty (Years): 5
    •    Shut-Off Function:

    With the Home Master TMAFC ro system water flow is regulated to a maximum of 50 gallons per day and thereby reducing waste water production.

    Due to the fact that water from most reverse osmosis systems is slightly acidic, minerals (magnesium and calcium) are added to the water in the storage tank and water faucet to balance pH-levels.

    A drain saddle, chrome faucet + faucet adapter, TFC-membrane, UV power supply and a storage tank are all part of the scope of delivery. The included self-explanatory user manual guides you through the installation process of this reverse osmosis water filter system and no professional help is needed here.

    What We Don't Like

    One minor disadvantage of this reverse osmosis system is that you have to pay for additional costs that come up to replace the whole filter housing. Luckily, this has to be done only once a year.

    Our Verdict

    If you are looking for the best reverse osmosis water filter system available, the Home Master TMAFC is definitely the right option for you. Its 7-stage filtration process ensures that you get healthy and almost 100 percent pure drinking water.

    iSpring RCC7 - Reverse Osmosis System with Faucet

    What We Like

    With its WQA Gold Seal and NSF certifications, you can be rest assured that the iSpring RCC7 5-Stage ro system is a premium water filtration unit built in the US. It operates problem free and makes almost no noises.

    The system comes at a very affordable pricing and uses cost-effective technology (automatic shut-off once the tank is filled up) making it a great choice for people who want to save money.

    In a 5-stage filtration process, the system removes 99% of all chemicals, pharmaceuticals and microorganisms and supplies you with a maximum of 75 GPD of refreshing drinking water.

    •    Price: $
    •    Water Purity: 99%
    •    Filtering Stages: 5
    •    Gallons per Day: 75
    •    Warranty (Years): 1
    •    Shut-Off Function:

    At filtration stage #4, the reverse osmosis process itself goes into action. Here, a larger membrane is used to increase the system's longevity and filling speed (ideal for larger households).

    What we like most about the system is the fact that even inexperienced handymen should be able to install it themselves with the help of a detailed user manual including DIY videos as they are part of the scope of delivery.

    What We Don't Like

    We don't like that the water pressure in your home needs to be at least 35 psi for this reverse osmosis unit to work efficiently. Therefore, citizens living in areas with low water pressure have to purchase an additional booster pump.

    On top of that the system's filters tend to wear out rather quickly, causing extra replacement costs.

    Our Verdict

    The iSpring RCC7 reverse osmosis water filtration unit is suitable for everyone who wants to save a few bucks when purchasing the system itself, but is willing to spend the extra dime to purchase replacement filters more regularly.

    Express Water 5-Stage Home Reverse Osmosis System Review

    What We Like

    The Express Water Home Reverse Osmosis System not only features a 5-stage filtration process that removes up to 99% of water contaminants, it also comes at a very low price compared to other ro systems on the market. The system is US-built.

    In the 5-stage filtration process solid particles such as dirt and sand, tastes and odors, chemicals and microorganism are being removed.

    Due to the fact that the system works fully automatic, it is very convenient to draw water from its faucet; the tank will get auto-refilled. Afterwards the system shuts off.

    •    Price: $
    •    Water Purity: 99%
    •    Filtering Stages: 5
    •    Gallons per Day: 50
    •    Warranty (Years): 1
    •    Shut-Off Function:

    Thanks to the easy-to-follow user manual and instructions, the system is easy to install (no special plumbing skills needed), fits in almost any kitchen and only requires low maintenance.

    4 extra water filters are added to the scope of delivery. Additionally, NSF certifications, a one-year warranty plus life-long professional support are also included in the package.

    What We Don't Like

    Customers have remarked that leakages might occur, if you don't follow the installation instructions precisely.

    On top of that, carbon may float on the water surface for a couple of days before dissolving.

    Our Verdict

    The Express Water 5-stage reverse osmosis system is legitimately one of the most popular among customers with a small budget. An affordable price meets great filtration performance that is up to standards.

    APEC Top Tier RO-90 5-Stage Reverse Osmosis System

    What We Like

    The APEC RO-90 GPD Reverse Osmosis Water Filter System removes 99% of all contaminants in a 5-stage water filtration process.

    Every single unit gets tested and put through a 10-point quality control procedure to ensure it is up to WQA Gold Seal standards, which guarantee the highest rates of water contaminant removal.

    Additionally, the seal ensures low noise levels during operation plus low maintenance requirements - pre-filters have to be replaced annually and filter cartridges last much longer than normal filters do.

    •    Price: $$
    •    Water Purity: 99%
    •    Filtering Stages: 5
    •    Gallons per Day: 90
    •    Warranty (Years): 1
    •    Shut-Off Function:

    Above that, the RO-90 provides you with 90 gallons per day of pure drinking water (almost twice as much as other systems provide).

    Once the system's water tank is filled up, it will shut down automatically to prevent water wastage and save energy and money. 100 percent lead-free chrome faucets complete the package.

    What We Don't Like

    Customers are concerned about the fact that the membrane filters are quite difficult to access. You might need to practice a bit before it will become a quick and easy task to do.

    Moreover, customers have experienced water leakage due to mistakes made during the installation process and additionally, floating carbon might take a while to be cleared during filtration.

    Our Verdict

    This APEC Water reverse osmosis system is top-notch and delivers the purest drinking water with the best taste. However, it costs about $100 more than the average system and not everyone is willing to pay that extra money.

    More on Reverse Osmosis Filtration Units

    In addition to our reviews, we would like to provide to you more information on RO water filtration technology, which might be the key to a sustainable water future.

    What Is a Reverse Osmosis Water Filtration System? - Buyer's Guide

    You have probably heard the term 'reverse osmosis’ or RO for the first time in relation to water purification. There are reverse osmosis systems for home, RO systems for businesses and large RO systems for industrial use. But what exactly is a reverse osmosis water filtration system? To explain this, it is necessary to define reverse osmosis first.

    healthy and best reverse osmosis system drinking water

    In simple words, reverse osmosis is the opposite of the natural osmosis process. If you remember your chemistry, osmosis occurs when a solvent, like water, moves from a low concentration solution into a more concentrated solution through a semi-permeable membrane. This process goes on until the concentration on both sides of the membrane is equal.

    In reverse osmosis, the opposite happens. A solvent, usually water, is forced to move from a high concentration solution to a low concentration one. The aim is to separate the solvent (liquid) from the solute (dissolved solids), resulting in pure potable water.

    A reverse osmosis water filtration system is thus a system that makes use of the reverse osmosis process to purify water and makes it safe for drinking. In homes, reverse osmosis systems come in small sizes and are used primarily to produce clean drinking water. You can even carry one with you when you go camping. In industrial applications, reverse osmosis filtration systems are much larger and more complicated. They can be used for many things from producing drinking water from salty seawater (desalination) to recycling wastewater.

    What Does a Reverse Osmosis System Do and How Does It Work?

    We have glanced briefly at the scientific principle behind the reverse osmosis system. But what exactly happens during the process. Here is a more detailed look at the inner workings of an RO filtration system.

    The objective of the reverse osmosis process is to remove bacteria, salts, lead, fluoride and other dissolved impurities from water. The resulting purified water can then be used for drinking and in other applications such as preparation of beverages, irrigation and factory production.

    An RO system comes with some essential components that makes the process possible. In fact, most RO systems are similar and work in roughly the same way. Some basic components you will find in most RO systems include:

    • Cold water inlet where water is fed into the system.
    • Reverse osmosis pre-filter. A pre-filter, of which there could be several depending on the system, helps to remove large particles such as sand and silt. These could damage the sensitive inner RO membrane. Some systems even have carbon pre-filters to remove chlorine, which could also damage the membrane.
    • Reverse osmosis membranes. This is the heart and center of an RO system. This is where a majority of dissolved components are removed by a semi-permeable membrane.
    • Storage tank. The storage tank is used to store the purified water. The size of the tank will depend on the capacity of the RO system.
    • Post filter. When you draw water from the storage tank, it goes through a final filtration process to remove any remnant odors and tastes; a sort of a final touch.
    • Other common components include valves, flow restrictor, faucet and drain line.

    To sum it up, water will enter the system, undergo a pre-filtering stage to remove large particles, pass through a semi-permeable membrane (the main RO process), go through a post filtering process and finally come out of the faucet as purified potable water. Of course, different systems will have slight variations in the process. Additionally, industrial systems will have much more complicated processes though still based on the same principle of forcing water to go against the natural osmotic pressure.

    One of the best explanatory videos about how reverse osmosis works can be found on YouTube. To make things easier, we embedded the video into our website. Check this out:

    What Are the Costs of RO Water Filter Systems?

    Reverse osmosis systems vary in price depending on the size and complexity of the system. For a few hundred dollars, you can get an under-sink system that connects to a single faucet in the kitchen. For several thousand dollars, you can get a larger system that cleans all the water coming into your home. Some systems will have a complicated 5-step filtration process, even using UV light to purify your water further.

    Your needs therefore, will dictate how much you will pay for a RO water filter system. Evaluate what your water purification needs are and what cost range is within your financial comfort. For homes, there are plenty of low cost RO systems. If you have a business, you might need something bigger and more expensive.

    Generally, reverse osmosis systems cost between $100 to $300 on the lower end and $1,000 and above on the higher end. Do not forget to add installation and maintenance costs for the system.

    Cheap Systems, Middle-Class Systems, High-End Systems

    When evaluating the cost of RO systems, there are three general categories you need to be aware of; cheap systems, mid-range systems and high-end systems.

    Cost of Reverse Osmosis SystemCheap systems will cost anywhere between $100 and $200. These are small home-based systems that usually connect to a single tap only. You can get a cheap RO system to place on your countertop or one that goes under the sink. These systems are cheap because they use the lowest quality parts available. While they will purify your water just as well as other higher priced systems, individual components do not last long. After about a year, you will have to replace various parts such as the filters and faucet.

    Mid-range systems provided the best value to homeowners. They range in price between $250 and $600 depending on size and complexity. They are much better in build and quality and are likely to last for many years. Some sellers even provide lifetime guarantees. If you are looking to buy a good quality RO water filtration system without spending thousands of dollars, look for a middle-class system.

    On the pricey end of the scale, we have high-end systems. These systems combine top performance with stylish looks and extra features in one system. The cost can start at $800 and go into the thousands. However, be careful when buying a supposedly high-end reverse osmosis system. Some come with useless bells and whistles that will do you no good. Others compromise on important features just to maintain their form and style. Make sure that when you pay for a high-end RO system, it actually delivers on function and performance.

    Which Contaminants Does a RO System Remove From Water?

    does reverse osmosis remove flourideA reverse osmosis system is designed to remove most of the impurities from water. At the pre-filter stage, large particles like sand and silt will be removed. Most RO systems also come with a carbon filter or two to remove chlorine, which would otherwise cause damage to the semi-permeable membrane.

    When the water gets to the heart of the RO system – the semi-permeable membrane – virtually any molecule larger than the water molecule will be filtered out. Most of the minerals will be stripped off, dangerous substances like lead and asbestos will be removed and compounds like fluoride and calcium will likewise be removed from the water. Even bacteria is not spared from the filtration process.

    What you have at the end of the process is almost pure water. This is why reverse osmosis is one of the most recommended water purification processes and is used everywhere from homes to large industries. It simply works.

    Does Reverse Osmosis Remove Fluoride?

    • Yes. While a little bit of fluoride in water is good for the teeth, especially in kids, too much fluoride can cause health problems. For water with excess fluoride, reverse osmosis filtration is highly recommended.

    Does Reverse Osmosis Remove Chlorine?

    • Yes. Although, it is important to note that chlorine is removed by carbon filters at the pre-filtration stage rather than the semi-permeable membrane at the heart of an RO system.

    Does Reverse Osmosis Remove Bacteria?

    • Yes. In the microscopic world, bacteria and viruses are literally giants. The semi-permeable membrane in a reverse osmosis system is designed to filter out molecules that are a thousand times smaller than the smallest viruses and bacteria. So yes, reverse osmosis will remove bacteria and viruses from water with ease.

    Does Reverse Osmosis Remove Salt?

    • Yes. Remember that anything bigger than a water molecule does not pass through the semi-permeable membrane. Dissolved salt will certainly not make it through the membrane. This is why reverse osmosis is used in desalination, where salty seawater is made potable. The removal of salt also improves the taste and smell of the filtered water.

    Does Reverse Osmosis Remove Calcium?

    • Yes. Calcium can be quite problematic in water because it causes hardness. It can clog up your plumbing, cause your pipes to rust and leave a film on everything the water touches. While there are many ways to remove calcium from water, reverse osmosis has proven to be the easiest and most effective method.

    How Pure Is Reverse Osmosis Water?

    Reverse osmosis is one of only two processes that produce what is described as 'high purity drinking water’. The other process is steam distillation. As mentioned earlier, the semi-permeable membrane found in RO systems removes anything bigger than water molecules. Thus, the filtered water at the end of the process has a high level of purity. In fact, the FDA recommends the use of RO filtered water in medical applications. Additionally, industry processes that require mineral-free water use RO filtration to obtain 'pure’ water.

    how pure is reverse osmosis waterBut what about an actual number representing purity level? Well, manufacturers and sellers of RO systems tend to claim that water filtered by their systems is 95-99% pure. While there could be some advanced high-end systems that come close to these numbers, the reality is that most home RO systems achieve lower purity percentages.

    This is not to say that reverse osmosis is not a good process to purify water. Even with a 70% or 80% purity level, the water produced is safe enough for drinking and other uses. It is important to note that different reverse osmosis filtration systems will have varying levels of water purification performance. Cheaper systems may be able to remove only 50 to 60% of dissolved solids while mid-range and expensive systems can get up to 80% and more. Furthermore, the percentage of water purity goes down as the system ages. This is why it is important to maintain your system regularly and change filters as recommended.

    Is RO Water Bad for You?

    People tend to be skeptical of new technologies, and rightly so. Even though reverse osmosis is not exactly new tech, there are still many people who doubt its ability to purify water. Other people claim that the water produced through reverse osmosis is not healthy. The main basis of this claim is the stripping away of minerals that are otherwise considered healthy for the human body. They call it 'dead water’ with no health benefits at all.

    Are they right in saying that reverse osmosis water is bad for you?

    Is RO Water Good, Safe & Healthy?

    Let us begin with the safety issue. Reverse osmosis is considered one of the best water filtration methods. As a result, it is used in hospitals, homes, disaster relief areas, laboratories and factories. Most of the bottled water you see on supermarket shelves is in fact produced through reverse osmosis. The filtered water may not, as we mentioned before, be 100% pure, but that does not mean that it is unsafe. Remaining solutes will not cause any health problem. So yes, RO water is safe to use and drink.

    But is it healthy? Absolutely. The average tap water supplied by your municipal is far from pure. Various studies have discovered that the water contains contaminants that cause skin rashes, tooth damage and allergic reactions. Even harmful substances like arsenic, lead and barium have been found in tap water. If you are getting your water from a ground source, there is even worse stuff lurking in it. Reverse osmosis removes most of these toxic chemicals, leaving your water safe and healthy to drink.

    Is RO water good for you healthy safeSimply because most of the minerals have been removed does not mean that your body is starved of essential minerals. Water is not the only source of important minerals for the body. A good diet with plenty of fruits and vegetables more than adequately covers the body’s mineral requirements.

    So you do not have to worry about RO water making you ill or denying you of amazing health benefits that you would otherwise get with normal tap water. It is safe, it is healthy and it is good.

    Benefits of RO Water

    • It is safe and healthy for you. RO water has been stripped of most contaminants that would cause health issues. Only steam distillation produces water as pure as RO water.
    • It is good for your skin and hair. All the contaminants in unfiltered water can have adverse effects on your skin and hair. You find yourself with unending rashes, dry and brittle hair and other problems. Using RO water is a highly recommended course of action if you want to improve your skin and hair health.
    • It protects your plumbing. Hard water clogs up your pipes and causes them to rust. A whole house RO filtration system changes the hard water into soft water, thus protecting your plumbing and prolonging its life.
    • Safe for cancer patients. Chemotherapy weakens the immune system and microorganisms in water can cause serious infections. RO water is often prescribed for cancer patients since it has been purified of bacteria and viruses.

    Do RO Systems Waste Water?

    One of the common charges against reverse osmosis water filtration systems is their water wastage. Potential buyers are warned of high water bills if they use RO systems. Is there any validity to this claim?

    What this claims do not give you is the full picture. Yes, it is true that more water goes down the drain than is produced by the RO system. No, it is not necessarily water wastage. Every chemical process, with a beneficial product at the end of it, requires an input of resources. It can be power, other chemicals, human labor or, as in this case, water.

    Most RO systems will drain away 2 to 3 gallons of water for every 1 gallon of purified water they produce. This may seem like a waste, but not so when you consider that other water purification methods take even more resources to work. For example, WAC or weak acid cation is a type of water softener that is very expensive partly because production requires a lot of water.

    When you consider just how effective reverse osmosis is at purifying water, then the water 'wasted’ is more like an investment that pays for itself many times over. So it is true that more water will go to drain than will come out of the system. But you would not really call this water wasted. It is simply a resource necessary for the final product, which is safe and healthy drinking water. You wouldn’t call water you use to do your laundry a waste, would you?

    With advancing technology, manufacturers are coming up with RO systems that have significantly less water draining away. In fact, today you can get some small reverse osmosis systems that drain very little water away. Additionally, you do not have to worry about power costs since most RO systems do not require any electricity to run. The water pressure in the system is enough to trigger the reverse osmosis process.

    Where Can I Buy RO Water?

    where to buy RO waterIf you want healthy and safe drinking water, the best recommendation is to buy a reverse osmosis system for your home or business. For tight budgets, you can get something small to place on your countertop or under your fridge. If your budget is more allowing, you can get a larger system that purifies your entire home water so that every tap in the house produces already-purified water.

    But if you do not want to deal with the costs and hustles of a reverse osmosis water filtration system, there is an alternative that will still get you purified water. Just buy reverse osmosis water.

    Where to get RO water

    Check your local Wal-Mart first. Chances are that they sell RO water by the gallon. The price can range between 30 and 50 cents per gallon. Most HEB stores also sell reverse osmosis water by the gallon. Check other stores in your area for RO water. Some have machines that you can pump yourself to get RO water.

    How to Change Reverse Osmosis System Filters

    A good quality reverse osmosis system can last for years as long as basic maintenance is done. This includes replacing parts that are subjected to wear and tear. One of the components that requires regular replacement is the filter.

    Filters can last for between 6 months and 3 years before they need to be replaced. This will vary depending on the quality of the system, and the kind of water passing through it. Cheap systems require replacements more frequently because their filters wear out more quickly. Additionally, water with high levels of impurities will wear out the filters faster.

    How to Replace RO Filters

    how to replace ro filtersBefore you attempt to replace your system’s filters, check the product manual. Your manufacturer will have outlined specific maintenance requirements for your system. The manual will even tell you how often you need to replace the various filters and the membrane in the RO system. Most importantly, check for specific step-by-step instructions on how to open up your unit and replace the filters successfully.

    It is also essential that you get the right filters for your unit. If you check your manufacturer’s website, chances are that they also sell replacement products including filters. If you are going to buy from another source, be sure of the quality of the filters otherwise you could be risking taking improperly purified water.

    Here are some basic steps that apply to most RO units. We cannot overemphasize the importance of referring to your product manual for specific instructions.

    1. Turn off the water supply and shut off the system.
    2. Drain the water in the storage tank into a container. Make sure the unit is placed on a towel to prevent spills on the floor.
    3. Refer to your manual on steps needed to open the unit. Some call for a filter wrench while others need you to unscrew a number of screws. Make sure not to lose any part during the opening process. Keep small parts such as screws in a safe place where they cannot role away.
    4. Replace filters as directed by your manual and put the unit back together again.

    Do we need to start drinking toilet water?

    The rising number of people living on our planet and severe droughts add to the problem that there is not enough clean drinking water available for everyone. This is the exact reason why we will have to accept "toilet-to-tap" schemes in the near future, according to BBC.

    Already today, wastewater including toilet flushes is being filtered and treated until it is perfectly ready and 100% safe for human consumption. "If anything, recycled wastewater is relatively sweet," says Anas Ghadouani (Environmental Engineer, University of Western Australia). Many people might not like the prospect of drinking recycled wastewater, but many cities incorporated it into their water supply, because it is the best way to tackle water scarcity and a necessity in a sustainable water future.

    After filtering out all the solids and other contaminants, a reverse osmosis filtration process is used to filter out even very tiny particles. Additionally, the water is flashed with UV-light to sterilize pathogenic microbes.

    If you are interested to get more information on this topic, you can find a link to the whole BBC-article right here.

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