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FAQ

1. What is Reverse Osmosis?

Reverse osmosis, also known as hyper filtration, is the finest means of filtration available today. It is the most common treatment technology used by premium bottled water companies. Reverse osmosis refers to the process of forcing water through a semi-permeable membrane under pressure.

 

2. How does Reverse Osmosis work?

Reverse osmosis uses a membrane that is semi-permeable, allowing pure water to pass through it, while rejecting the contaminants that are too large to pass through the tiny pores in the membrane.

 

3. Can Reverse Osmosis be used on well water or water from other untreated sources (lake or river)?

Yes, RO is generally an excellent choice for homeowners with well water. However, it is important to note that reverse osmosis does not provide foolproof protection against all microorganisms. You should have your water tested for bacteria and virus contamination before relying solely on reverse osmosis. If microbiological contamination is present or suspected, you should combine reverse osmosis with an ultraviolet system for maximum effectiveness and protection against bacteria and viruses. A water softener or whole-house iron filter may also be advisable (depending one the level of relevant contaminants in your well water) to prevent membrane fouling thereby ensuring maximum membrane life and effectiveness.
 

4. How often does the reverse osmosis membrane need to be replaced?

With proper maintenance of your sediment and activated carbon pre-filters, your reverse osmosis membrane should last 2-3 years.
 

5. Why are reverse osmosis systems always combined with carbon and sediment pre-filters?

The only major category of contaminants that reverse osmosis is not highly effective in removing (organic compounds) is specifically targeted by activated carbon filters. Pre-filters also prevent the reverse osmosis membrane from being fouled or clogged by sediment, chlorine, and other contaminants, thereby enhancing its effectiveness and lifespan.
 

6. I notice that a reverse osmosis system will remove just about everything from my water, including some nutrients that are good for the body. Should I take a supplement to counteract the nutrients that I will no longer get through my water.

No, this is not necessary. You should already be getting all of the nutrients such as essential salts, vitamins, and other trace minerals from the food you eat and the other beverages you drink.
 

7. What is Power H2O Home Reverse Osmosis System?

Power H2O RO Systems is a Home Drinking Water System that uses the principle of reverse osmosis to remove 95-99% of all the mineral and chemical contaminants from raw tap water. Power H2O products give you the quality of bottled water with the convenience of a faucet mounted on your kitchen sink.

 
8.How does Reverse Osmosis differ from a Water Filter?
Ordinary water filters use a screen to separate only particles of dirt sediment from water. Reverse osmosis employs a semi permeable membrane that removes not only particles but also an extremely high percentage of dissolved contaminants-molecule by molecule from raw tap water.
 

9. What is the membrane and how does it work?

The membrane consists of several thin layers or sheets of film that are bonded together and rolled in a spiral configuration around a plastic tub (This is also known as a thin film composite or TFC membrane.) The material of the membrane is semi permeable: it allows water molecules pass through while acting as a barrier to dissolved solids (i.e.: mineral chemical contaminants). When the feed water stream passes across the surface of the membrane, the Power H2O molecules penetrate the membrane surface, working their way around the spiral and collecting in the center tube. The remaining contaminants are concentrated and washed from the surface of the membrane down the drain.

 

10. Can you explain Osmosis ?

Assume a membrane is semipermeable, allowing water to pass through while being closed to dissolved salts. Place a membrane between two compartments in a container as shown in the figure to the right. Then place a salt solution in one half of the container and pure water in the other half. Now a fundamental scientific principle comes into play. That is, two different concentrations of liquids within the same system will try to reach equilibrium (i.e. the same concentration of contaminants) on both sides of the membrane. Of course the only way for this to happen is for pure water to pass through the membrane to the salt water side in an attempt to reach equilibrium is called OSMOSIS.
 

11. What is Reverse Osmosis ?

Reverse Osmosis is the reversal of the natural flow of osmosis. In a water purification system, the goal is not to dilute the salt solution, but to separate the pure water from the salt and other contaminants. When the natural osmotic flow is reversed, water from the salt solution is forced through the membrane in the opposite direction by application of pressure-thus the term REVERSE OSMOSIS. Through this process, we are able to produce pure water by screening out the salts and other contaminants.

Reverse Osmosis Water Purification System.

 

12. What is the actual process of the Power H2O Home R. O. System?

The raw tap water first flows through a 5 micron particle FILTER[1] to remove dirt, rust and other sediment. The water then flows into a carbon briquette cartridge FILTER[2] which takes out 98% of the chlorine and organic chemicals. The next stage of the process is FILTER[3] 1 micron sediment filter or the Block carbon filter to filter multi-chemical compounds and suspension. [4] The reverse osmosis membrane (TFC) which will separate 95-99% of the dissolved contaminants from the water molecules. The contaminants are then washed down the drain. The next stage of the POWER H2O RO SYSTEMS process is the small CARBON FILTER [5] removes the remaining traces of chemicals, tastes and odors.

The R.O. water is stored in a 3.2 gallons TANK[6]. Inside the tank is a balloon-like rubber diaphragm, pre-charged with 8-10 psi of air. As the tank fills, the air pressure increases and pushes the water out when the faucet is opened. The final element of the Power H2O Series system is a POLISHED CHROME FAUCET [7]. It is installed on the kitchen counter or the sink. It is a dual action faucet offering intermittent flow (to fill a glass, hold the handle down) or continuous flow (to fill a coffee pot, lift the handle up).
 

13. How did Reverse Osmosis get its start ?

Although the idea of reversing osmosis has been known for over 10 years, the practical application is a recent development. In 1962 the U.S Government funded the first R.O. plant which processed 1000 gallons clean water per day. Today, there are more than 3000 large R.O. treatment plants, each producing more than a million gallons of drinking water each day. In 1991, the U.S. Army bought 8,000 large membranes to their mobile water purification units for troops in Desert Storm. In 1993, the U.S. Government bought another 6,300 large membranes to purify floodwater in the Midwest.
 

14. Will R.O. remove Sodium from the water ?

YES! Reverse Osmosis was originally designed to make seawater drinkable for the navy. It is ideal for anyone on a low sodium diet.
 

15. Does R.O. remove Bacteria? Cryptosporidium ?

YES! An R.O. membrane has a pore size much smaller than bacteria virus, pyrogen or the cryptosporidium parasite. When functioning properly it will remove all microorganisms from tap water and produce sterile water.
 

16. What does the Power H2O series drinking water test like ?

The taste of the Power H2O water depends on the amount of contaminants in the tap water originally. If 95% of dissolved minerals and chemicals are removed, the R.O. water may taste like distilled water (no minerals), bottled water (low mineral), or natural spring water (moderate mineral content).
 

17. What factors affect the quantity and the quality of the water produced ?

There are four major variables to consider:

1. PRESSURE. The greater the water pressure, the better the quantity and quality of the water produced. Water pressure of 60 psi ideal. Power H2O include one booster pump can make sure the water pressure.

2. TEMPERATURE. 76*F is the ideal water temperature for R.O. 40*F water will cause the production of R.O. water to fall to half of that at 76*F. The maximum water temperature recommended is 85*F.

3. TOTAL DISSOLVED SOLIDS (TDS). The higher the amount of dissolved contaminants in the water, the lower the quantity of water produced. A high level of TOTAL DISSOLVED SOLIDS can be overcome with additional water pressure.

4. MEMBRANE. Different membranes have different characteristics. Some produce more water than others; some have better contaminant rejection capabilities; some have greater resistance to chemical abrasion for longer life. Power H2O system comes with TW30-1812-80 The Thin Film Composite(TFC) membranes combine the best of these characteristics and are considered the finest membrane in the world.
 

18. What is the guarantee on the Power H2O System ?

The Power H2O System (excluding filters) is guaranteed for 1 years for material and workmanship. All defective parts will be replaced free within the first year. The membrane has a one-year pro-rated guarantee.
 

19. What is the maintenance schedule for the Power H2O System ?

The three pre-filter cartridges should be changed every 6 months. The first is a 5-micron sediment cartridge. The second is a Carbon Cartridge. The third is 1-micron sediment filters. (Some system comes with the Extruded carbon filter.) Failure to change the cartridge every 6 months may allow chlorine to destroy the membrane. It is very easy to change the prefilters. Just order the needed filters from us and all system come with the housing wrench to open the filter housings so you can maintain your system yourself and feel confident about your drinking water.
 

20. When should the membrane be changed ?

One indication is a gradual reduction in water production caused by a layering of minerals and salts on the membrane surface. Another is a gradual deterioration in the quality of water being produced. You my notice a different taste or more white scum on the inside of a pan of water you are boiling. This might mean the R.O. membrane is disintegrating and requires replacement.
 

21. What contaminants does Reverse Osmosis Remove ?

The Power H2O System contains a quality carbon filter which will remove more than 98% of organic chemicals from the water.
These include THMs (chloroform), DBCP, lindane, TCEs (trichloroethylene), PCEs (tetrachloroethylene), carbon tetrachloride chlorine, In addition to these organic chemicals, below is a partial list of other contaminants removed by the Re1812-70 TFC membrane. The percentage of removal shown below is a conservative estimate.

TYPICAL THIN FILM COMPOSITE(TFC) MEMBRANE REJECTION RATE*

Barium
Bicarbonate
Cadmium
Calcium
Chromate
Copper
Detergents
Fluoride
Lead
Magnesium
Nickel
97%
94%
97%
97%
92%
97%
97%
90%
97%
97%
97%
Potassium
Radium
Selenium
Silicate
Silver
Sodium
Strontium
Sulfate
PCBs
Insecticides
Herbicides
92%
97%
97%
96%
85%
92%
97%
97%
97%
97%
97%

Total Dissolve Solids : 95%


We are the most comprehensive web site for Reverse Osmosis Systems. Any question regarding our reverse osmosis system, please feel free to contact us.
 

22. How is RO water compared to bottled water ?

Just as good or even better. We use the same technology, reverse osmosis (RO), as other major bottling plants use to filter water. Our drinking water has a sweet taste with a touch of minerals —not like the flat taste of distilled or bottled water. The five-stage system is the most stable and complete RO process. The best part is that you maintain your system and ensure your family's health yourself.
 

23. How effective is Reverse Osmosis filtration compared to other methods ?

RO is the most convenient and effective method of water filtration. It filters water by squeezing water through a semi-permeable membrane, which is rated at 0.0001 micron (equals to 0.00000004 inch!). This is the technology used to make bottled water, it is also the only technology capable of desalinating sea water, making it into drinking water.

Non-RO water filters are much less effective, and the pore size on these filter media are much bigger, generally 0.5 - 10 micron. They can filter out coarse particles, sediments and elements only up to their micron rating. Anything finer and most dissolved substances cannot be filtered out. As a result, water is far less clean and safe compare to reverse osmosis filtration
 
 
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