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Reverse Osmosis Purification System

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Reverse Osmosis
If you believe what the many of these marketers of residential reverse osmosis systems are saying, you would think that these residential reverse osmosis systems were a revolutionary piece of equipment at your fingertips. The only problem is that the reverse osmosis systems residential benefits have not exactly been what people are expecting.



Residential reverse osmosis systems are revolutionary only because they are the first reverse osmosis systems built for home-use instead of industrial usage. Reverse osmosis has been the primary standard of water treatment in the industrial world for nearly a century. It's primarily used in order to keep mineral deposits from forming in machines such as boilers.

Reverse Osmosis systems for residential use has only recently begun and is currently being explored. It's been touted as a water purifying system that is a scaled down version of the filters used at treatment facilities. And the filtering system even at the level at water treatment plants still leave a lot to be desired in terms of water treatment.

And as much as its touted as revolutionary, residential reverse osmosis systems are relatively new but based on an older system. In fact, they have been utilized for water treatment for over a century. They were first introduced in order to slow down waterborne disease mortality and moderately worked well. It wasn't until chlorine was first introduced in 1908 that the apparatus began to show its effectiveness.

The problem with reverse osmosis is that it was never designed to be primarily as a cleaning apparatus. The porous membrane filters used were primarily for demineralization purposes and were not for the removal of anything smaller or lighter than a water molecule. What that means is there is a chance that microscopic compounds can get into your drinking water. Unfortunately, many owners of residential reverse osmosis systems aren't finding out until after the fact.

There are many toxic chemicals flowing in our drinking water today and they flow through the filters from reverse osmosis systems. Bacteria and other small contaminants escape through these membrane filters and enter the water system. And now the primary worry by the owners of these costly systems is that their system is helpless in removing these contaminants.

It would be a safe assumption that if the reverse osmosis system at a water treatment facility failed in its mission to halt the flow of these toxins, that residential reverse osmosis systems don't stand a chance at stopping these contaminants at all. That is because the reverse osmosis system is really only the first stage of what needs to be a multi-pronged attack in combating these micro contaminants.

Had many of the reverse osmosis systems residential owners done their research before they bought their unit, they would have known that these costly systems are not what they needed. They would have realized that there are whole house and point of use filtering systems that they could have gotten at a fraction of the price that they paid for these residential reverse osmosis systems

So, residential reverse osmosis systems is definitely not the answer for pure, clean drinking water. What is necessary in combating the chemicals in your drinking water is the combination of an activated carbon filter and a multi block filter. In addition, a purchase of a sub-micron filter and an ion exchange unit, and you will be on your way to having pure, safe drinking water minus the contaminants.
Reverse Osmosis Purification System
It depends, if you have brackish water laced with salt, then yes, one of the residential reverse osmosis systems is a good solution. But, if you are on a chlorinated water system, with no salt problems, there are simpler and far less expensive systems available. In this article we will look at why one of these systems, selective filtration, might be a better choice for you than reverse osmosis.

The increase of chemical toxins in our environment has led to a lot of discussion about our "body burden", the term for the total amount of these toxins in our bodies at any given time.

In the past, we worried a lot about the quality of the water we consumed and how it was affecting our bodies, and rightly so, but now scientists are discovering the quality of the air in our home poses an even greater load on our bodies. One of the largest offenders is chloroform, a byproduct of the chlorine in our water.

"Every home in America has an elevated level of chloroform gas due to the vaporization of chlorine...from the tap and shower water," according to the EPA. (It's true, the shower is the largest producer but the dishwasher and the washing machine aren't far behind).

By removing the chemical toxins at the point of entry into our homes, using whole house purification units, we significantly improve both the quality of the water and the quality of the air.

And, there is a compelling reason to look at RO and SF technologies before you buy, because they differ significantly in initial costs and the cost to operate.

In today's world, cost differences might determine whether or not we can even buy a whole house unit. Very good residential selective filtration systems will run about $800. Comparable residential reverse osmosis systems are in the $10,000 range.

How do you explain the price differences?

One of the hardest things to remove from water is salt and, years ago, RO was developed as a cheaper way to clean up salt water than by using distillation. But that was when water and electricity were both very cheap. Today RO is an expensive technology as you will see.

RO systems use the home's water pressure to force water through a membrane having pores so small only molecules the size of water molecules, or smaller, can pass through, leaving contaminants with larger molecules behind.

Not all contaminants are stopped by the membrane. Chlorine, its byproducts and many other chemical compounds have small molecules that allow them to pass through easily. Carbon filters are added to remove them and to protect the membrane.

Smaller RO systems are very slow producers and typically take two to three hours to deliver one gallon of water. Whole house units are much faster, producing in the area of 1,800 gallons per day. Both large and small units require pressurized storage tanks to provide any quantity of filtered water.

The smaller RO units need the home's water pressure to be at least 40 psi (pounds per square inch) to operate efficiently. Older homes, or well water systems, may require booster pumps. Whole house systems typically come with booster pumps.

A lot of water is wasted, even with adequate pressure in the system, because for every gallon filtered, often 2 to 5 gallons of water cannot be pushed through the membrane. This water is then flushed, along with the filtered contaminants.

There are some systems that do recycle this water but, recycling, electricity requirements, storage tanks and, possibly, extra pumps are what cause the high initial costs and some of the higher operating costs. Then too, the more things in a system that can go wrong, the more chances there are for additional maintenance issues to further increase the operating costs.

A good option to reverse osmosis, especially if you are on a chlorinated water system (which most of us are), is selective filtration.

In these systems, redox (reduction/oxidation), mechanical filtration and activated charcoal are integrated into a multistage filtering process that will quickly process the water at the whole house level.

The relatively new redox filter uses a chemical exchange process to remove toxic metals, such as dissolved mercury or lead, from water. RO and distillation can also remove lead, but redox filters uses the first technology capable to remove these toxic metals by simple filtration methods.

Chlorine and its byproducts, along with other organic chemicals, are 99 percent (plus) removed by the activated charcoal. And, the total process treats water somewhat like a water softener, with no sodium added, and the odors, bad tastes and sediment are also removed.

These systems produce filtered water rapidly (over seven gallons per minute), without electricity, storage tanks, or booster pumps. Their simplicity also makes for simpler installations.

For anyone wanting to improve the air and water quality in their home, selective filtration systems are a viable cost saving option to consider.
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About Author
Both Peter Patterson & David Eastham are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.

Peter Patterson has sinced written about articles on various topics from Family, Health and Family. Peter Patterson is a health researcher and specializes on water purification. He currently is a contributing editor for The Truth About Water Filters, a site that. Peter Patterson's top article generates over 9900 views. Bookmark Peter Patterson to your Favourites.

David Eastham has sinced written about articles on various topics from Water Filters, Health and Reverse Osmosis. David Eastham has done exhaustive research on such subjects as reverse osmosis to discover the most cost effective way to provide good, clean drinking water. Here ar. David Eastham's top article generates over 9900 views. Bookmark David Eastham to your Favourites.
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