Bacteria and Viruses cause most of the commonly found water .Typhoid, paratyphoid, cholera, dysentery, diarrhoea and gastroenteritis are the common bacterial diseases. Polio, hepatitis A & E (jaundice), gastroenteritis, dysentery, infantile diarrhoea etc. are viral diseases. The commonly found protozoan diseases are amoebic dysentery, cryptosporidium, giardiasis, ascariasis, and hookworm etc. These major diseases accounts for 80% of the epidemic occurrences

While boiling the water, all the dissolved oxygen will escape and make the water tasteless. Dissolved oxygen is required in our body for easy digestion. Moreover while boiling the water the concentration of the chemical impurities will increase i.e. nitrates, pesticides etc. We cannot remove physical impurities through boiling. To kill micro organisms we need to boil water for a minimum of 20 minutes for 100% success rate. In addition to this boiling is a time consuming, expensive and non eco - friendly method.

Chlorination is usually done by treating water with bleaching powder, which is cheap & readily available as a white powder. Chemically it is Sodium Hypochlorite / Calcium Hypochlorite. The bleaching powder reacts with water and produce hypochlorous acid. Hypochlorous acid destroys the bacteria in the water but at the same time reacts with organic impurities in water producing dangerous Trihalomethanes (THMs). Besides, the excess chlorine reacts with ammonia producing chloramines. Both these compounds are carcinogenic - causes cancer. Most of the developed countries have banned chlorination.

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.

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

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 EVERSURE RO SYSTEMS process is the post CARBON FILTER [5] removes the remaining traces of chemicals, tastes and odors.

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

YES! An REVERSE OSMOSIS WATER PURIFIER. 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 .

Ordinary water filters use a screen to separate only particles of dirt sediment from water. Reverse osmosis employs a semipermeable membrane that removes not only particles but also an extremely high percentage of dissolved contaminants-molecule by molecule- from raw tap water.

The semi permeable membrane consists of several thin layers which 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.) It allows water molecules pass through while acting as a barrier to dissolved solids (i.e.: Microorganisms, mineral, chemical etc.). When the feed water stream passes across the surface of the membrane, the EVERSURE molecules penetrate the membrane surface, working their way around the spiral and collecting in the canter tube. The remaining contaminants are concentrated and washed from the surface of the membrane down the drain.

Diagram of a Reverse Osmosis Membrane:

The EVERSURE 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

The EVERSURE WATER PURIFIER 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 1812-75 TFC membrane. The percentage of removal shown below is a conservative estimate.

TFC MEMBRANE REJECTION RATE*

Material/Element % Removed Material/Element % Removed Barium 97% Potassium 92% Bicarbonate 94% Radium 97% Cadmium 97% Selenium 97% Calcium 97% Silicate 96% Chromate 92% Silver 85% Copper 97% Sodium 92% Detergents 97% Strontium 97% Fluoride 90% Sulfate 97% Lead 97% PCBs 97% Magnesium 97% Insecticides 97% Nickel 97% Herbicides 97% Total Dissolved Solids 95%

Carbon used in filtration applications is produced by grinding a carbon source - like bituminous coal, peat or coconut shells and heating the material in the absence of oxygen to 1000 degrees to bake off impurities. The material is then subjected to 1600-degree steam to “activate” the carbon. The steam leaves carbon granules filled with cracks and pores, enabling them to store large amounts of chemicals. One pound of activated carbon (the amount in a standard ten-inch filter cartridge) has the equivalent surface area of a 160 acre farm.
Carbon removes contaminants in two ways: through adsorption , contaminants are attracted to the surface of the activated carbon and held to it in much the same way a magnet attracts and holds iron filings; and by acting as a catalyst to change the chemical composition of some contaminants. Activated carbon is ideal for removing chlorine, organic chemicals such as many kinds of pesticides, THMs like chloroform and many VOCs that are components of gasoline, solvents and industrial cleaners.

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 .

taste of the EVERSURE water depends on the amount of contaminants in the tap water originally. If 95% - 99% 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).

The EVERSURE 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.

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. (Note: Water Quality Tester- TDS meter) help you to know when you should change the R.O. membrane.

There are four major variables to consider:

PRESSURE. The greater the water pressure, the better the quantity and quality of the water produced. Water pressure of 60 psi ideal. EVERSURE WATER PURIFIER include one booster pump can make sure the water pressure. 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. 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. EMBRANE. 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. EVERSURE system includes RE1812-70 The Thin Film Composite (TFC) membranes combine the best of these characteristics and are considered the finest membrane in the world.

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 a 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.

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. (Note: Water Quality Tester helps you to know when you should change the R.O. membrane.

Yes, All in home water treatment equipment needs occasional attention and many require replacement filters & membranes. Follow the manufacturers recommended service and maintenance instructions.