RO Water System Parts – how do they Work?

4 stage RO system parts

Reverse osmosis or RO is a water purification technology, which uses a semipermeable membrane to remove a larger particle from drinking water. Reverse osmosis can be applied to many things. To purify drinking water is just one example. Reverse osmosis is also applied for desalination, food industry, maple syrup industry, reef aquariums, window cleaning etc.

How does reverse osmosis work?

Reverse osmosis appears to be a complex process. Actually, it is not. In fact, it is a simple and straightforward. We will tell how you how does reverse osmosis work. We hope after you read the explanation, you will have a better understanding of this process. Before we start, here are some important things to know:

  • All of the reverse osmosis processeswork the same way
  • Most reverse osmosis systems look alike
  • All of the reverse osmosis processes have the same basic components
  • The real difference is not in the process, but the quality of the components. Specifically, thequality of the filters and membranes inside the reverse osmosis

Now, let’s talk about the process.

Reverse osmosis is a process which removes dissolved inorganic solids (for example, salt) from a solution (in this case, water).

How does this accomplished?

Let’s say we have a tank of water. One side is filled with saltwater and the other is filled with pure water. The saltwater and pure water are separated by a semi-permeable membrane. Now, we would apply pressure to the saltwater side. The pressure applied is enough to counteract the natural osmotic pressure from the waterside and push the saltwater through the filter.

This will take about 50 to 60 bars of pressure. Because of the salt molecules size, only the smaller water molecules will make it to the other side. Thus, adding fresh water to the pure water side and leaving the salt on the other.

What are the reverse osmosis machine parts?

Although reverse osmosis machine parts can be different one from another, here are the basic parts that are common in RO systems:

  1. Cold water line valve

It is a valve that fits into the cold water supply line. It has a tube that is attached to the inlet side of the reverse osmosis pre-filter. It is the water source for the reverse osmosis system.

RO Water Splitter

  1. Pre-filter(s)

The number of pre-filter used in a reverse osmosis system differs from one another. Indeed, there may be more than one pre-filter used. The most commonly used pre-filter is the sediment filter. This kind of pre-filter is used to remove dirt, sand silt, and another sediment. Other pre-filter, such as carbon filter, can be used too.

APEC RO pre-filters

  1. Reverse osmosis membrane

It is the most important part of the reverse osmosis system. The most commonly used membrane is a spiral wound. There are two kinds, the thin film composite or material (TFC/TFM) and cellulose triacetate (CTA). CTA is chlorine tolerant, while TFC/TFM is not.

Reverse osmosis membrane

  1. Post filter(s)

After leaving the storage tank but before going to the faucet, the water goes through post filter. The post filter is generally carbon. It can be in carbon block or granular form. It is used to remove remaining odors and tastes from the water.

APEC RO post filter

  1. Automatic shut off valve (SOV)

It is used to conserve water. When the storage tank is full, the SOV stops the water from flowing to the membrane.

Reverse Osmosis System Auto Shut Off 4 Way Valve

  1. Check valve

The check valve is located at the outlet end of the reverse osmosis membrane housing. It prevents the backward flow of the water from the storage tank. By doing this, it prevents the membrane from rupturing.

RO check valve

  1. Flow restrictor

The flow restrictor is used to maintain the flow rate required to get the highest quality drinking water. It is also used to maintain pressure on the inlet side of the membrane. The flow restrictor is located in the reverse osmosis drain line tubing.

flow restrictor

  1. Reverse osmosis tank

The storage tank can hold up to 2.5 gallons of water.

APEC RO system tank

  1. Reverse osmosis faucet

ro faucets

  1. Drain line

It is used to dispose of the contaminant and impurities found in the water source

  1. Reverse osmosis machine pump

  2. Reverse osmosis booster pump

The benefits of reverse osmosis

What are the benefits of reverse osmosis? There are many benefits you can get from this system. Here are some examples:

  • It removes contaminants from the water, which makes the water safe to drink. The contaminant, such as lead, is dangerous. Lead toxicity can cause anemia and brain damage to children.
  • It removes parasites
  • It improves the appearance, odor, and taste of the water

What is Reverse Osmosis Water Good For? RO Bottled Water

What is Reverse Osmosis Water?

Water is an important aspect of our life. Without water, we cannot fulfill our body’s needs and do the daily activities. In short, we will vanish from the earth without water. However, it is a fact that not all water is safe for consumption. Some of them are too dirty for important use in our daily activities. You can imagine the side effects of using that kind of water. Of course, you do not want to deal with some health problems in the future. Therefore, it is important to find the best way to get the clean and healthy water.

When You are Curious about Pure and Healthy Water

It is not easy to fulfill your needs of sterile water without thinking the best solution. Whenever you use the tap water, you are afraid that you drink some substances you do not want to drink. There are many types of potential problems in tap water. It starts with bad odor, unpleasant color and the unknown substances within.

Some people suggest you use reverse osmosis water. Now, you must be curious about it. What is reverse osmosis water? Is it beneficial to use this system?

how does reverse osmosis work

Reverse osmosis is a treatment to process water. This water purification system is used around the world to improve the quality of water. When you are using this system, you are able to use water for drinking, cooking and other important uses without worrying the substances in the water.

During the purification stages, the water flows through specialized membranes. This is where the magic happen. The membranes are as thick as cellophane. They can remove foreign contaminants, solid substances, and large molecules. This is a great aspect of this system since you do not want to consume unhealthy and dangerous substances.

The Advantages and What It’s Good For?

You might ask yourself, What is reverse osmosis water good for?” Is it only about removing the unwanted substances? You will find many positive aspects of this purification system:

  • First, the reverse osmosis water filters are able to remove the smallest particles from the water, including the inorganic pollutants as metals and chemicals. The other water purification methods like boiling and ultraviolet light cannot do the same even though they are able to destroy bacteria.
  • Next, this system uses membrane filters that last for a long time. It means you do not have to change the filters as frequent as the other water filtration systems. You can save your time, money and energy.
  • The next advantage of using the reverse osmosis water filters is related to the environment. This water purification system is eco-friendly. They do not produce any chemicals. You do not want to create more damages in our beloved environment, right?
  • Furthermore, this system is able to remove the minerals and the other contaminants that cause bad odor from your water. It is the right time to say goodbye to the smelly water. You can use the water for drinking, cooking, bathing and the other activities.
  • This system is also valuable for the user since they are small. It does not require a huge space. In addition, it is easy to change the filters since they are available everywhere, even in the retail stores. Installing and changing the filters are not difficult at all.
  • There is another amazing information about the water that treated by the reverse osmosis water filter. The water is ideal for people with heart disease and cancer patients since the system is able to eliminate almost all salt and remove bacteria and pyrogenic substances up to 99%. There are no arsenic, nitrates, sodium, copper and lead within the water. Besides, drinking lots of water is being an important aspect for people on weight loss programs. You may also try watermelon diet for weight loss benefits if you can’t drink lots of pure water.

Reverse Osmosis Bottled Water

You know that water is an important aspect when you want to have a healthy lifestyle. We need to drink water six to eight glasses per day for our health. Practically, every cell in our body depends on water to carry out the essential functions. When our body has sufficient amounts of water, we have higher energy and better endurance.

With all these facts, you know that regular water is not working for you anymore. The quality of water affects your health. That is why; it is important to drink only pure water. You cannot be separated from the reverse osmosis bottled water with all its amazing benefits.

Reverse Osmosis Bottled Water

Besides taking the reverse osmosis water on your tumbler, it is also easy to get the water everywhere. You might think, “Where to buy reverse osmosis water?” In fact, it is not difficult at all to purchase the water. Recently, there are water depots that provide reverse osmosis water. Brands like Aquafina and Dasani using RO and other technology for their bottled water purification – read about them here. Besides, on retailers, it is also available online. Therefore, you do not have to worry about the stock of reverse osmosis water anymore. Purchasing the water is an easy thing to do.

The Waste

Now, it is also important for you to know about reverse osmosis wastewater. When we are trying to produce clean water, we will have to deal with wastewater. This is the truth. It can be said that all reverse osmosis systems produce wastewater.

Some amount of water goes into the drain. However, with properly designed and efficient system, the reverse osmosis wastewater ratio can be set to the lowest point. For example, the ratio of wastewater and purified water is 1:1. It means, one part is wastewater and one part is purified water. With the best system, you even do not have to waste any water that you do not have to.


How Does Reverse Osmosis Work and What It Can Be Used For?

Reverse osmosis has allowed us to produce more drinking water especially in a water-scarce region like the African continent. But you might be asking how does reverse osmosis work in all actuality? Well, you probably have heard of the term of osmosis before this. It is a natural occurrence where a liquid with low solute consistency will travel to high solute consistency through a semipermeable membrane. Reverse osmosis does the very exact opposite of it. It allows the liquid to travel from the high solute consistency to the low. In doing so, it will separate the pure water from the minerals, ions, and other molecules such as salt.

The next question on you mind would probably be how does reverse osmosis work to filter water. Reverse osmosis water purification system will use a certain filter technology to turn brackish or saline water into drinking water. The device that is used might varied, but they use the same type of technology. Within each device, there will be different kinds of filter membrane that will separate the bad molecules from the pure water.

reverse osmosis filtration

First, there is the sediment filter, or two, which will remove the bad molecules or materials from the water. After being separated from tangible particles, the water will still be filtered through a carbon filter. While the sediment filter is used to trap non-organic materials, the carbon filter will remove the organic materials such as chlorine. Just like the sediment filter, there will usually be two carbon filters within the device. After that, the water will go through the reverse osmosis water filter. In the final step, the water will be processed with a UV light which will kill the bacteria still in the water.

Other Uses of Reverse Osmosis


RO for Home

RO for homeReverse osmosis has so many different functions in life, but one of the best thing about it is that it can be used in our own home. The use of RO for home is varied but mostly to purify water. Reverse osmosis for water treatment at home is very easy to use nowadays. You can even get the device at the store for a rather affordable price. Whether you live in the dry place or water-rich environment, using a reverse osmosis can save you a budget to buy clean water.

The use of reverse osmosis at home is varied. Whether you are using the government water or your own well, RO can be very useful.

Reverse osmosis for well water is typically suitable for those who live in the bad water area. For instance, back then in Haiti after the earthquake, the well water turned muddy and undrinkable. By using the reverse osmosis technology, they were able to turn the dirty well water into a drinking water. This can also be used in a regular well water as a precaution as it will remove bacteria and particles that might be in the water.

Turning Salt Water into Drinking Water

There is another use of this process that will benefit so many people all around the world. The use of reverse osmosis for desalination is one of the most amazing breakthroughs in the history of human being. If you live where the sea water is the only available source of water, you will still be able to survive using the reverse osmosis device. By using the device, you can separate the saline solution from the pure water through the membrane within the RO device itself.

reverse osmosis for desalination

Aquariums Benefits

Reverse osmosis water purification systems are not just used to create more drinking water. There are others benefits outside home use of it. For instance, it can be used for the aquariums. But how does reverse osmosis work for aquariums?

Well, the system is used as a replacement of regular water when filling in the aquarium. That is because the pure water from the RO is cleaner and does not contain things like minerals that can ruin the ecosystem in the aquarium. By using the reverse osmosis system and deionization, you will create a healthy environment and ecosystems for your animals within the aquarium.

aquarium dual reverse osmosis system