Even back in 1970, manufacturers knew there was a more “correct” way to apply RO technology to reverse osmosis systems. They recognized that as innovative as this Point Of Use (POU) RO invention was, it had some inherent limitations and less than desirable efficiency that translates into thousands of gallons of wasted water per year for the owners of these devices and also less quality of the drinking water. So why didn’t anyone do something about it back then? - For the simple reason that there was no practical way to implement a more “correct” design at that time. 

The W.O.W.-RO uses water pressure to push the RO water from the holding tank. This is known as a "Water-On-Water" Reverse Osmosis System and should be the next RO to revolutionize the water treatment industry!

What Are The Limitations Of A "Air-On-Water" Reverse Osmosis System?

A Reverse Osmosis System operates by forcing water across a semi permeable membrane. The higher the water pressure on the membrane, the better the contaminant removal and the water will be produced faster. It's as simple as that. 

A typical "Air-On-Water" holding tank is pre-charged with 7 PSI of air pressure. Thus, if the water pressure to your home is 60 PSI, the reverse osmosis system you install will have only 53 PSI of pressure across the membrane as it has to push against the 7 PSI of air pressure in the tank.

As your reverse osmosis system continues to fill the tank, the air in the tank is compressed thus increasing the back pressure on the membrane. Once your tank is completely full of water, the air pressure has increased to 40 PSI. With your incoming water pressure of 60 PSI, this means that the membrane is only working with 20 PSI of pressure across the membrane. Very inefficient!

What this means to you is that the quality of the water is less than it could be and there is more water waste. When the tank is completely empty, it may take your reverse osmosis system an hour to make the first gallon of quality water. As the tank nears full, and the air pressure in the tank has increased, it may take 2-3 hours to make the last half gallon or quart! A reverse osmosis system will flush a certain amount of water down the drain each hour it is operating. 

Also, as you open the faucet to use the water, the flow of water will be great when first used and then slowly slow to a trickle as the tank empties. Should your ice maker turn on at this time, there is a good chance the ice maker line may actually freeze. Should you have a newer refrigerator which requires at least 40 PSI of water pressure, the ice maker won't work at all. This is a feature that is added to refrigerators to prevent the ice maker line from freezing.

How is a "Water-On-Water" Reverse Osmosis System Different?

A Reverse Osmosis System which uses a "Water-On-Water" holding tank is very different than the traditional systems in use today. A "Water-On-Water" systems uses a holding tank that uses water pressure to "PUSH" the RO Water out of the tank. 

• There is NO BACK PRESSURE on the membrane during water production. This means better quality water and faster production as the RO Membrane will ALWAYS have full line water pressure across it. 
• LESS Water Waste. Because the membrane is making water faster, the system will shut off sooner.
• NO SLOW Trickle of water from the RO faucet as a "Water-On-Water" holding tank uses water pressure to push the RO Water from the tank. You will have a FULL FLOW of RO Water all the way to empty.
• Many refrigerators and ice makers today require at least 40 PSI of water pressure to operate properly. A traditional RO System cannot guarantee 40 PSI at all times and refrigerator manufacturers recommend the use of a booster delivery pump if the customer is hooking the refrigerator up to a RO System. With a "Water-On-Water" Reverse Osmosis System, the refrigerator will always have full line water pressure going to it.
• This also means ice-makers make consistently sized ice cubes and eliminate icemaker freeze-ups. 

Back in the mid 1980's I worked for a company in the Los Angeles area which used the Hydrotech system. It was a great system. It's only limitation was that it could not be hooked up to an icemaker. This was this system's flaw. We have solved this problem. The W.O.W. Reverse Osmosis system can be hooked up to multiple outlets such as an icemaker, wet bar, etc.

Kodak and Teledyne couldn't find the market they were looking for. Hydrotech couldn't find a simple way to hook up to an icemaker. Eventually the idea of a "Water-On-Water" reverse osmosis system fell by the wayside. I guess it's a case of "Well, everyone else is using a "Air-On-Water" tank, we may as well also." 

The hydraulic valves used in the W.O.W.-RO are specially designed to provide a Water-On-Water system which brings out all the best features of a reverse osmosis system while eliminating the drawbacks of a traditional Air-On-Water design. 

What are the W.O.W.-RO Performance Advantages? 

1. With the W.O.W.-RO Reverse Osmosis System, there is “no back pressure” on the membrane during water production. This means you will have faster production as well as better quality.
2. Every time the water is used, the RO Membrane gets a "fast flush". This keeps the RO Membrane cleaner.
3. W.O.W.-RO produces higher quality water under a wider range of water conditions, such as higher Total Dissolved Solids and lower operating pressure (as low as 45 psi.) 
4. W.O.W.-RO produces more water in a shorter period of time.
5. W.O.W.-RO produces water with astonishing efficiency compared to conventional designs – less water waste! Conventional air-on-water devices must force water into the storage tank against increasing air pressure and this is its main drawback. During this process water is wasted unnecessarily and the quality of the water is reduced. The opposite is true with WOW-RO which provides the ultimate in water conservation. 
6. W.O.W.-RO is designed to deliver treated water to the customer at full flow all the time. There is no decline of flow and pressure as with conventional air-on-water designs. 
7. W.O.W.-RO fills the customers water glass or coffee pot in less time than conventional POU RO devices. The flow and pressure are the same to the very last drop. This is especially important when the POU RO is connected to a refrigerator water dispenser located across the room. 
8. W.O.W.-RO allows ice-makers to make consistently sized ice cubes and eliminate icemaker freeze-ups. 
9. W.O.W.-RO is compatible with office automatic coffee makers that require constant flow and pressure to make consistently good pots of coffee. 
10. Since the Holding Tank does not use air pressure, there is more room for water. The W.O.W.-RO Holding Tank will hold Two Gallons of water that is all available at a fast flow rate!
11. No more having to re-charge the holding tank with air.

Many customers with a traditional Air-On-Water system use a booster pump to increase the efficiency of their system or to increase the pressure to their refrigerator. These are noisy, noticeable and, in the case of a Booster Pump, it can be on for 2-3 hours! 

The customers who have tested this system have not found the chattering to be distracting. 

The price will be $895.00. Yes, you can find traditional "Air-On-Water" systems for less, but why would you want to?

Please use the "Contact Us" button above if you have any questions.