What are the Pros and Cons of Reverse Osmosis?

Posted by
Freeman Linton

In weighing the advantages and disadvantages of reverse osmosis, here are a few of the “pros”:

Exceptional Water: 

Because RO has the ability to remove 95-99 percent of total dissolved solids (TDS), as well as chlorinefluoride and other impurities, reverse osmosis filtration can greatly improve the odor, appearance, and overall taste of your water.

Quality Water Means Increased Water Consumption: 

The Pros and cons of reverse osmosis.Installing an RO system in your home will give your household clean, great-tasting water to drink and cook with. In fact, many families have found that after putting in a reverse osmosis system, family members begin to drink more water and consume less soda or sugary drinks.

Better-tasting food: 

It’s no mystery why many restaurants use RO-filtered water in their cooking. Cooking with filtered water that is free of impurities can dramatically impact the flavor of most recipes.

Energy Efficient: 

The RO filtration process consumes no energy.

Cost Effective:

An RO system can produce outstanding filtered water for pennies per gallon-- which can save you a bundle over buying bottled water. (Not to mention the convenience of having it available right at your kitchen tap).

Simple Maintenance:

While some water filtration and purification systems are cumbersome and time consuming to maintain, an RO system is quite easy. Simply change out the filters and membranes according to your system’s manual. And if you buy from ESP Water Products, we'll send you a reminder when it's time to order a replacement filter! Most filters are replaced every six to 12 months and your RO membrane should be replaced every 2-3 years--but this length can vary depending on the water quality in your area and how much you use your RO system. 

What are the Disadvantages of Reverse Osmosis?

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The tiny pores of an RO system can become clogged if not properly maintained. Even common chlorine can damage an RO system. Therefore, RO system owners should carefully follow the system’s maintenance manual and service guidelines. In some cases, RO owners have also invested in a  pre-filter to protect the system from fouling.


The reverse osmosis process takes time. Reverse osmosis operates by using household water pressure to push tap water through a semi-permeable membrane—and this isn’t a speedy process. If you use a large amount of filtered water all at once and empty out the system’s holding tank, you must allow time for the RO process to refill the tank.

Filter Replacements:

Although an RO system can produce clean, delicious water inexpensively, there is the ongoing expense of filter replacements.  Also, Reverse Osmosis systems are virtually maintenance free, but should be cleaned and sterilized once per year.

The advantages win out--and millions of homeowners chose RO drinking water systems to provide delicious, quality water for their households.

Check out these top sellers!

PuroTwist 4-StageAxeon CRO-50 RO SystemPuroTwist 3-Stage