You can get a high quality reverse osmosis water dispenser for your kitchen countertop or you can get a high quality sub-micron filtration device for less. You can get reverse osmosis water filtering systems with technology from 50 years ago or you could get something more modern.
The latest model of a reverse osmosis water dispenser uses additional technological advances to provide something safer and cleaner. That's a good thing, because the older models did not reduce chemical contaminants like chlorine.
Reverse osmosis water filtering systems remove lead and copper. Ion exchange units exchange lead and copper ions for potassium and sodium, electrolytes that are good for the body and improve the taste.
A reverse osmosis water dispenser removes microscopic cysts that cause mild illness in most people, but can cause death in those with weakened immune systems. Kitchen counter units with sub-micron particle blocks remove cysts, traces of chemicals, prescription drugs and more, but they cost less than half what you would pay for reverse osmosis water filtering systems.
A reverse osmosis water dispenser removes minerals, like the old distillation processes. Purifiers with ion exchange “add" minerals, because they are needed for healthy digestion and overall good health.
As you can see, there is nothing that reverse osmosis water filtering systems can do that another effective system cannot do. They are overpriced and the technology is outdated. Plus, unless you get a really expensive mineral revitalization reverse osmosis water dispenser, you may as well be drinking distilled. And, studies have shown that's not good for your health.
If you are serviced by a treatment facility, the process has already been performed, so the system is redundant. If you have a highly contaminated source, you might need RO, but a compact reverse osmosis water dispenser will not do the job. You would need RO, a disinfection system, and granulated carbon. If you wanted something good tasting and healthy, you also would need a re-mineralization step.
The Environmental Protection Agency recommends that people with weakened immune systems, due to illness or cancer treatment, should take extra precautions to avoid exposure to cysts. The term “cysts" is used to refer to the oocyst stage in the life of a protozoan, parasite or bacteria. The two most common are giardia and cryptosporidium.
In an otherwise healthy person, infection with these parasites might only cause a “tummy ache". In a person who is ill, combating cancer or in children with still developing immune systems, an infection of this type can cause death.
They suggest four options; reverse osmosis water filtering systems, sub micron filtration , boiling or bottled. If you choose bottled, you need to verify that the manufacturer uses one of the aforementioned purification processes. If you boil, you will not remove chemical contaminants, in fact you will pollute your indoor air with THM gases that cause cancer.
Since, they recommend either a reverse osmosis water dispenser or sub micron filtration obviously the two devices are equivalent. So, choose the one that you want, but if you go with RO, make sure that it also includes a carbon filtration step to remove hazardous chemicals.
Laurel Tevolitz is a dedicated researcher of critical issues that affect health and well-being. Visit her water purification blog now at http://www.safewaterpurifier.com to discover which water purification system she recommends after extensive research.