Why you should stay away from residential reverse osmosis systems
Although their popularity has declined over the last years, residential reverse osmosis systems are still one of the alternatives that the average consumer considers when he or she becomes aware of the importance of having clean, healthy water at his or her home.
As in the case of the other water purification technologies, there are advantages and disadvantages when one wants to consider buying a reverse osmosis system. Below, I will present to you the reasons why I personally think you should better not consider selecting one. In terms of importance, the first is the least, while the third reason is the most important.
Reason #1: They take a long time to process water. This downside is directly related with the way they operate: High pressure water is forced through a membrane with very small pores in it, so that water, which consists of relatively small molecules, gets to be separated from pollutants which in contrast tend to have large molecules. Water passes through to the other side of this membrane, while the rest is accumulated before it. As you realize, due to the minute size of the membrane pores, it takes a long time for water to pass through.
To give you some figures, two to three hours is a typical length of time to produce just one gallon of pure water. It is therefore required during the installation of residential reverse osmosis systems to cater for a storage tank, big enough to hold up to 5 gallons of water.
Therefore, when you buy a reverse osmosis system you should always have in mind that you need the extra available space needed for the storage tank. Also, you should estimate beforehand the maximum demand of running water that you will nedd at your home on an everyday basis, so as to make sure that the system you will install will be able to meet that demand.
Reason #2: What’s more, residential reverse osmosis systems are generally low performers, as they typically produce only 1 gallon of pure water every 3 up to 10 gallons of tap water. In other words, their efficiency can reach at its best only 33%. The water that is wasted on the input side, is just drained away.
This fact has a direct impact on your bottom line, as your cost per gallon of water is increased because of the higher water consumption. Furthermore, you have to take care of the water drainage, this complicating your installation set up.
Reason #3: While I may agree with you that the reasons I presented so far are not that strong enough to deter you from buying residential reverse osmosis systems, the third one I am sure will make you definitely think otherwise. As I said above, the way that these systems work is by separating water from possible contaminants it might contain, based on their molecular size. While admittedly this method is reasonably successful for a large range of pollutants, the sad truth is that, along with the harmful substances, water is stripped off from essential minerals (magnesium, calcium potassium and so on).
It is worth mentioning that demineralized water is not very appealing to your taste buds. It is flat and tasteless.
But, it is not just a matter of loss of taste. According to credible research reports, long-term consumption of demineralised water can in fact be dangerous. After a study stretching for a number of years, the World Health Organization concluded that “drinking water should contain minimum levels of certain essential minerals”.
If you want to be better informed about the different options you have in front of you to improve the quality of water that you are getting at your house and what I personally recommend, visit my website.
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