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The reverse osmosis process is a filtration method in which water is passed through a filter membrane with pores so small that only pure water is able to get through. Other contaminants are physically too large to pass through the membrane, so they do not enter the water supply.
Reverse Osmosis removes the widest spectrum of contaminants of any water treatment process. Water is forced through semi-permeable membranes leaving the dissolved particles in the more highly concentrated solution.
An emerging concern with bottled water has been the recently discovered presence of microplastics. A study conducted at the State University of New York in Fredonia tested 259 bottles of water from 11 brands across 9 countries. Out of the 259 bottles tested, only 17 were found to be free of plastic. In fact, on average, each liter sold contained 325 pieces of microplastic. These contaminants included polypropylene, nylon, and polyethylene terephthalate. A publication from the World Health Organization recommends the use of Reverse Osmosis Systems to remove microplastics from drinking water.
The National Academies of Sciences, Engineering and Medicine recommends that men consume about 125 ounces of fluid a day and women should drink about 91 ounces daily. You get around 20% of this from food. If we use this model and assume you buy bottled water in bulk from Costco the price would be around 70 cents per 16.9 ounces which breaks down to 4 cents per ounce.
If you follow the recommendation and drink 100 ounces per day you can calculate your cost like this:
Let's compare this cost to the yearly cost of the All American Reverse Osmosis System. The 5-stage AARO ( All American Reverse Osmosis System) starts out at $349.95, the filters for this system need to be changed annually or semi-annually depending on water conditions. Let's assume you need to purchase filters every six months. The price of replacement filters runs $59.95 but you can save 10% if you enroll in autoship. The annual cost breaks down like this:
Initial purchase price ($349.95) + replacement filter cost if replaced every 6 months ( $59.95x2) = $469.85 for the first year and $119.90 annually.
The annual cost of purchasing bottled water is over 10 times the cost of Reverse Osmosis.
Contaminant | Reduction | Contaminant | Reduction |
---|---|---|---|
Algae | 99.90% | Mercury | 98.00% |
Aluminum | 98.00% | Mold | 99.90% |
Amoebic Cysts | 99.00% | Nickel | 95.00% |
Arsenic | 95.00% | Nitrate | 89.00% |
Asbestos | 99.00% | Phosphate | 95.00% |
Atrazine | 95.00% | Potassium | 95.00% |
Bacteria | 95.00% | Protozoa | 99.00% |
Barium | 97.00% | Radioactivity | 95.00% |
Calcium | 99.50% | Sediment | 99.00% |
Chloride | 95.00% | Selenium | 95.00% |
Chlorine | 99.90% | Silicate | 89.00% |
Chromate | 94.50% | Silver | 97.00% |
Copper | 99.00% | Sodium | 94.00% |
Cryptosporidium Cysts | 97.00% | Strontium | 97.00% |
Cyanide | 97.00% | Sulfate | 95.00% |
Fluoride | 98.00% | Thiosulfate | 99.00% |
Giardia Lamblia Cysts | 99.00% | Trihalomethane | 98.00% |
Lead | 97.00% | Volatile Organics | 95.00% |
Manganese | 98.00% | Zinc | 97.00% |
Magnesium | 97.00% | Z, 4-D | 95.00% |
Every Reverse Osmosis System sold by US Water Systems comes with an easy to read installation guide. If that's not enough, then we also have step by step installation videos available for every product we make. While the installations are simple and straight forward, you can also hire a plumber to perform the installation.
As a general rule we suggest that our customers purchase one of our water tests before buying a system. The test is sent off to an independent 3rd party laboratory for testing. This allows us to provide independent and unbiased facts to our customers regarding the underlying cause of their current water issues. More importantly, it allows us to provide different solutions to the water issues that our customers face. Even better, if you choose to go with one of our recommended systems, the water test acts as a $100 credit towards the purchase price.