Water Appliances

Best Reverse Osmosis Systems – Comparison and Buyer’s Guide

Do you know that average tap water in America contains 350 ppm (particles per million). It is 7 times higher than recommended by experts. It may be as high as 500 ppm in many areas which is harmful. A Best Reverse Osmosis System will reduce to as low as 20ppm. Physicians suggest consuming water having less than 50 ppm.

Most of the people who are searching for a new RO filter do not know which is suitable for them. The type of reverse osmosis system one need changes from one home to another. If a house is getting water from well, then they will require a reverse osmosis syistem with a permeate pump. It will increase the water feed pressure to the requirement of the filter. Similarly, when the people are looking to buy a water filter to remove particular contaminate they should contact the company in person. All the companies do not have a clear list of contaminants removed by their systems on the internet.

Example: Home Master TMAFC does not remove Iron from the water which may be your need to buy a new water filter system.

This list we curated over the weeks will give you more info on Reverse Osmosis water filters and guide to select the suitable one for your house. We have also created a reverse osmosis comparison table to give you a quick look at the important features.

Water Filter NameGallons Per DayFiltersWastage ratioOur RatingCheck Price
Home Master TMHP
(Most Advanced)
75 GPD71:1 4.6 View on Amazon
APEC ROES-50 Water Filter
(Top Seller)
50 GPD53:14.8 View on Amazon
iSpring RCC7 75 GPD
(Best Deal)
75 GPD52:14.8 View on Amazon
Home Master TMAFC50 GPD74:14.8 View on Amazon
iSpring RCC7AK
75 GPD6 2:14.6 View on Amazon
(Low Water Pressure Homes)
90 GPD53:14.3 View on Amazon
Hydro Logic 31040
(Heavy Duty)
200 GPD42:14.5 View on Amazon
Watts WP5-5050 GPD54:14.0 View on Amazon
iSpring RCC1UP-AK100 GPD72:14.1 View on Amazon
APEC Water Filter RO-9090 GPD53:14.7 View on Amazon

Best Home Reverse Osmosis System 2018

1. Home Master TMHP – Most Advanced RO Filter System

Home Master TMHP RO water FilterAre looking for a feature-rich, high quality and all in one reverse osmosis water filter system? Then Home Master TMHP RO water system is the best RO system for the home you can find. It had all the latest and highly advanced features and technology with 9-stages of filtration, purification, sterilization, and enhancement to produce clean and healthy water. Home Master System is one of the pioneers in researching and developing new RO technologies. It is the first company to bring remineralization process to reverse osmosis filters called Full Contact Technology.

TMHP water system removes 99.9% of the contaminants from water. It removes pollutants like less effective sand, dust, chlorine to highly dangerous chemicals, Iron, Micro-Organisms and 1000+ other contaminants. The additional UV filter even destroys viruses from water. Filters used in the system will last for almost a year; it is double than most of the competitors. With all the above features and technologies, you will receive the healthiest fresh water that had no taste or odor.

Remineralization process which called as Full Contact Technology is available in all Home Master RO filters. It will add calcium and magnesium (30mg/li) to the water which is removed during the filtration process. The human body required both these minerals to be healthy.

The water system can produce 50 gallons of fresh water per day and stores in the water tank. The wastage of water by the TMHP system is very less; it wastes one gallon of water per every gallon of fresh water. It is least we have seen in any reverse osmosis water filter and saves a lot of water. The Automatic Shut-off feature will stop the outflow of water once the tank is filled thereby reducing your water bill and being environmentally friendly.

Home Master TMHP water system comes with a permeate pump attached to it. Many homes are having low water feed pressure and many draw water from wells. This will ensure the water feed pressure is between 45 to 80 psi which is required for the system to work normally. Use of the permeate pump will also save more water from leaving the drain. The reverse osmosis system filters water as much as possible. The temperature of the water feed needs between 40F to 100F.

As there is a UV filter in the water system, the RO filter requires electric connection to work. It weighs around 19 pounds and occupies a moderate space and fits perfectly under your sink. Home Master TMHP HydroPerfection under sink reverse osmosis system comes with a 5-year warranty.

The price of the Home Master TMHP is the highest in the segment, more than 500$. You should also consider the benefits you are getting from the system. Consumers should consider this as an appliance that will maintain your health and as a long-term investment for your family.
  • Highly safe drinking water.
  • Remineralization.
  • Permeate Pump.
  • Long lasting Filters.
  • Less water wastage.
  • Expensive (Feature Rich).

Purchase This Product on Amazon

2. APEC (ROES-50) – Top Selling Reverse Osmosis System

APEC ROES-50 Reverse Osmosis System

APEC water systems are the best reverse osmosis filtration systems produced in the United States. It provides fresh and great tasting water for all the household purposes.

ROES-50 water system removes more than 1000 contaminants that include lower, and mid contaminants like chlorine, odor, bad taste, sand and dust to highly dangerous ones like Arsenic, lead, sodium, metals, and radium. It is designed to take out more than 99% of the contaminants.

It had Automatic Shut-off feature which stops the in and outflow of water once the filters are filled. APEC ROES-50 can provide 50 gallons per day using its 5-stage water filtration system.

APEC 5-stage RO water system weighs around 25 pounds and will fit perfectly under your sink. It occupies very less space than imagined and provides free space for placing other items. ROES-50 requires a Minimum Feed Water Pressure of 40psi and maximum of 85psi. If the pressure of your house water flow is less, it will not work, and if it is high, it may damage the product. The temperature of the water should also range between 40F to 100F.

Before deciding to buy a product check the feed water pressure and temperature in your house, as some products may not be suitable for your house.

APEC water systems 20 years of experience in the field and use only NFS certified components. ROES-50 is designed for noise and trouble free usage for the consumer with long lasting filters. High quality and durable fittings make sure there are no leaks even when you use for longer periods.

The installation of the system is easy to do and simple process. Even though you have no prior experience in plumbing, you can easily install the system by following the manual. Other than the manuals and installation guides there are videos on the web to make your work easier.

APEC Systems are easy to upgrade or downgrade. All the water filtration systems have similar designs, so it is easy to add or remove a component. This way consumers do not need to buy a new filtration system when moving to a new home. All the parts and add-ons are available to buy in offline and online stores.

APEC 5-stage Reverse Osmosis Water System ROES-50 is the top selling water filtration system in many online stores. APEC water systems provide free lifetime support where the specialist are WQA certified. It had a 4.8-star rating out of 5 stars from more than 1500 reviews. The main reasons for its high rating are due to the high removal of contaminates, affordable price, easy to use and install, supportable for most of the American houses.

APEC Water System respects its job, it donates its water filtration systems to many international organizations every year for developing and undeveloped countries.
  • High Removal of Contaminants.
  • Affordable Price.
  • Noise, trouble and leak free.
  • No Remineralization.

Purchase This Product on Amazon

3. iSpring High Flow RCC7 – Best Deal at Low Price and High-Quality

iSpring RCC7 Reverse osmosis water filteriSpring RCC7 RO water filter is the best economic water filter with WQA Gold Seal certificate for safety, quality, and durability. It is an American based company and all the products of iSpring are manufactured with high care and precision in the United States.

This 5-stage water filter removes more than 99% of the pollutants. It removes common substances like chlorine and fluorine to highly dangerous Lead, Arsenic, Sulphur, pesticides and more than 1000+ types of contaminants. In many of the reviews users had mentioned that even when the average ppm of ordinary water is more than 500, iSpring reduces the amount to less than 25 ppm. When you compare iSpring vs Apec best ro system you get almost the same amount of PPM.

Health specialists recommend drinking water that is having less than 50 ppm.

iSpring RCC7 water systems waste only 2 gallons per every gallon of drinkable water it produces. Which is better than most of its competitors and save lots of water for you. It also comes with Automatic Shut-off feature that stops the outflow of water once the tank is filled.

The filter of the RCC7 Undersink Reverse Osmosis system can last almost six months which is a disadvantage as other RO systems last a year. However, the filters are rather cheap to buy. It can be replaced easily with the spanner provided with the water system. You can check the quality of filter using the TDS meter. Also, Stage one of the system is transparent for clear visual inspection.

Use a TDS meter to check the quality of filters in the system.

The iSpring water system can filter and produce more than 75 Gallons per day. It is higher than any competitor offers in the price segment. A 75 GPD water filter is more than enough for an average household in the US. The RCC7 system can operate normally when the range of pressure is between 40psi to 80psi. The temperature should range between 40F to 100F. If these conditions are not maintained, then the water system may not work or get damaged. So, it is better to check the conditions of water flowing in your home before ordering.

iSpring RCC7 under sink RO water system comes with one-year limited warranty and lifetime technical support. Users can also return the product within first 30 days if they are not satisfied with the product.

With 75 gallons per day and lowest price iSpring RCC7, RO water system is the best deal you can get. It had a rating of 4.8 from thousands of consumer reviews in online sites.

  • Less water wastage.
  • High water output (75 GPD).
  • Easy to install.
  • High pollutants removal rate.
  • Filter life six months.(Depends on water feed)
  • May leak sometimes.

Purchase This Product on Amazon

4. Home Master TMAFC – Advanced RO System

Home Master TMAFC which is previously known as Tap Master TMAFC is a reverse osmosis water filter system. It had an Artesian Full Contact technology which is a patented technoloHome Master TMAFC water filter with full contact technologygy of Perfect Water Technologies. This technology allows to remineralize the filtered water and provides healthy and tasty mineral water.

TMAFC water filter had 7-stages for filtration and remineralization of the water. The first five stages is where the contaminants in the water are removed. It removes 98% of the pollutants like chlorine, fluorine, lead, heavy metals and chemical substances. The last two stages are where the water gets remineralized, in this stage calcium and magnesium (30-60mg/l) are added to the water. The water produced by Home Master TMAFC is equivalent to the water bottles we buy in quality, and it costs less than 2 cents per gallon.

Home Master TMAFC does not remove Iron and microorganisms.

The water system comes with a Fast Flow RO Kit this will double the speed of water flowing through the faucet. This is due to larger fittings and tubing in the Artesian Full Contact technology, thus increasing the rate of outflow of water.

Double the flow of water from your faucet than standard RO systems.

Home Master TMAFC can produce 50 gallons per day. On average, the water wastage is four gallons per every gallon of drinking water it produces. This wastage of water is slightly higher than the typical RO water filter systems. It also comes with an Automatic Shut-Off feature which stops the outflow of water once the filter tank is filled.

TMAFC Reverse Osmosis system is an under sink water filter system which fits under your sink and leaves much space. The dimensions of the system are 20x16x13 inches and weigh around 14.1 pounds.

Installation of the water system is very easy, which can be done by reading the manuals. There are multiple videos online on how to install a Home Mater TMAFC water system. The filters work well for almost a year or 2000 gallons of drinking water. It also comes with a five-year limited warranty in the US.

The price of the Home Master TMAFC reverse osmosis water system is a bit expensive, but the features provided are also more than any other competitor. It comes with a remineralization system, the Fast flow of water, five-year limited warranty, and minimal space.

  • Remineralization.
  • The fast outflow of water.
  • 99% contaminants removal.
  • Minimal space.
  • Easy installation.
  • High wastage of water.

Purchase This Product on Amazon

5. iSpring RCC7AK – Additional Remineralization Filter

iSpring RCC7AK RO Water filteriSpring RCC7AK is 6-stage reverse osmosis filter system that not only removes contaminants but also adds minerals. It is an American based company that manufactures its products in the US. RCC7AK received WQA Gold Seal and NSF certification, which means all the parts are safe, durable and reliable.

The filter system is capable of removing 99% of the contaminants both inorganic and organic. It eliminates a significant number of pollutants like aluminium, barium, iron, sulphate, pesticides, DOT, chloroform and 1000+ other pollutants. iSpring RCC7AK reduces the ppm to less than 20 which is even less than recommended 50 ppm for drinkable water.

On an average, the water in the United States have 140-400 particles per million(ppm) or even more which is highly dangerous for health.

iSpring RCC7AK includes total six filter stages; the first five stages are similar to any other RO water system. The 6th stage is what makes it unique; it is an Alkaline stage which is what the AK in RCC7AK refers. Alkaline stage adds calcium and magnesium (30-60 mg/L) to the decontaminated water from the 5th stage. RO remineralization cartridge helps to regain the pH of the water to its normal levels.

iSpring RCC7AK re-mineralise reverse osmosed water in the 6th stage.

RCC7AK water system comes with Automatic Shutoff which stops the flow of water once the tank is filled with filtered water. With this, it prevents wastage of water from the filter. Wastage to water ratio is 2:1 which means for every gallon of water it produces 2 gallons of water drained. This is very less than other filters in the segment. iSpring RCC7AK also provides drinking water of 75 gallons per day.

Anyone with basic plumbing or DIY knowledge can fix the water system by reading the manuals. Most of the necessary parts like wrenches, fittings, spare O-rings are provided along with the water filter system. It weighs around 25 lb and fit under your sink without any problems. The total installation process and working of the water system complete within an hour.

RCC7AK requires water feed pressure between 40-95 psi and temperatures of the water should range between 40-100°F. pH of the water should also be in between 3.0 – 11.0. The pressure of the water can be decreased using a regulator and increased using a booster pump.

All the iSpring water systems come with a one-year limited warranty and 30 days’ money back if the user not satisfied and wants to return the product. iSpring also provides lifetime tech support for all of its customers.

It had 90% positive feedback from hundreds of customers on different websites. It is one of the best reverse osmosis systems for a home that add minerals to the filtered water. RCC7AK also produces more than 75 GPD of water, and the price of the water system is also not very high based on the features it provides.

  • Remineralization.
  • The fast outflow of water.
  • 99% contaminants removal.
  • Minimal space.
  • Easy installation.
  • High wastage of water.

Purchase This Product on Amazon

6. APEC RO-PERM – Low-Pressure Homes

APEC ROPERM Reverse Osmosis water filter systemAPEC RO-PERM water system is designed for the homes that have low water feed pressure. RO-Perm is developed and manufactured in the USA with high-quality materials and testing. It provides healthy and good tasting water for you and your family.

Ro-Perm Water system comes with a permeate pump which doesn’t require any electricity to work. This will increase the pressure of the water flow to the standards of APEC water systems at which they work. If the pressure of water is your home is between 30psi to 45 psi, then you will need this system. A permeate pump will increase this pressure to 50 to 60 psi at which a reverse osmosis water system works. Use a pressure gauge to check your water feed pressure.

Check the water pressure in prior; it may cause noise trouble if your water feed pressure is more than 50psi.

The power required to operate the system is taken from the drain flow. The permeate pump fills water tank 2-3 times faster and saves more water than conventional RO filters.

Coming to the water filtration, it comes with 5-stages that remove contaminants, odor, and taste. All the parts used in the water system are NSF certified, which means they are safe, reliable and durable. All the five stages remove 99% of the pollutants like chemicals, dust, metals, colors, and 1000+ other dangerous contaminants.

APEC RO-Perm water system can produce 90 gallons of drinking water per day. which is more than an average household in the United States uses. The wastage of water in the APEC RO-Perm is 3 gallons per every gallon of drinking water it produces. This is standard wastage for any reverse osmosis water filter system.

The installation and using the water system is very easy with all the instructions present in the manuals. There are a good number of videos on the internet where customers can watch the process of installation. The installation process takes less than 1 hour for the system to start working.

All the APEC water systems come with a one-year limited warranty and 30-day cash back option. If the users are not satisfied with the product, they can return and get the money back. Users also get lifetime tech support.

APEC RO-Perm reverse osmosis water filter system had more than 90% approval rate from the customers. Even though the price of the system is high, it is mostly due to the pre-fitting of permeate pump to increase water pressure. It also had high GPD, less water wastage, and leak proof fittings. It is the best home reverse osmosis system to consider if the water pressure is between 30 to 45 psi.

  • Permeate Pump
  • Easy Installation.
  • 90 Gallons per day.
  • 99% water removal rate.
  • No Remineralization.

Purchase This Product on Amazon

7. Hydro-Logic 31040 – Heavy Duty System (200GPD)

Hydro Logic 200GPD ro water filterAre you looking for reverse osmosis system that produces high amounts of clean water? Then Hydro Logic Stealth RO 200 is the best home ro system for you. Hydro-Logic Systems is an American company, and all the parts manufactured in the USA. It is a 4 stage water system that can produce up to 200 gallons per day.

It had the capacity to produce 200GPD of water which means it can produce more than 8 gallons of fresh water per hour. With this high production rate, you can use the fresh water for most of your needs. You can also save time as the production rate is faster than any conventional RO system.

Check the water pressure in prior; it may cause noise trouble if your water feed pressure is more than 50psi.

Stealth RO 200 remove 98% of the contaminants like chlorine, viruses, bacteria and many other pollutants. It provides you with healthy, fresh, odorless and tasteless water. This will help you to drink more water every day and maintain your body healthy and fit.

Wastage of water is very less which normally is 3 gallons of water is wasted for every 1 gallon of filtered water produced. You can adjust the system to decrease more than 25% of wastage in water. The pressure of feed water should maintain between 40 to 80 psi for the system to work normally. A pressure gauge attached to the system provides you with the real-time water pressure in psi.

A booster pump or pressure regulator can be used to maintain the feed water pressure.

The PH of the water produced by the system is stabilized and avoids mineral build-up. Filtration process reduced the PPM (particle per million) from as high as 500ppm to below 15 ppm which is considered healthy ppm by physicians.

The total system weighs less the 12 pounds and occupies very limited space. It can be mounted on your wall as it comes with wall mountable metal bracelet. The water system is certified to use in the US by both NSF and WQA. Which means you should not be worried about the quality of water it produces. Hydro-Logic 31040 Stealth Reverse Osmosis 200GPD had a one-year limited warranty.

  • 200 GPD of Water Production.
  • Easy Installation.
  • Less water wastage.
  • In built pressure gauge.
  • No Storage Tank.
  • Complex filters.

Purchase This Product on Amazon

8. Watts WP5-50 – RO Filter

Watts WP5-50 reverse osmosis water filterWatts WP5-50 is a made in US water system that filters water using Reverse Osmosis technique. All the parts used in the system are NFS certified, which means you will get safe drinking water. Watts is a budget option for consumers which cost less than 190$ but still provides high-quality water on par with the competition.

WP5 water filtration comes with a 5-stage water filter that removes many contaminants. It removes plenty of pollutants like lead, nitrides, arsenic, chlorine and much more. It produces excellent tasting and healthy water for drinking and cooking.

As the name indicated, Watts WP5-50 could produce 50 gallons of water per day. The storage tank has a capacity of 3 gallons. For every gallon of drinkable water, it produces four gallons of water is sent through the drain. Wastage of water is slightly higher than the competitors! This may increase your water bill.

You can save more water as the system had an Automatic Shut-off feature which stops the outflow of water once the tank filled with filtered water. It is a necessary function in RO systems, and most of the filters had Automatic Shut-Off feature. The water should have a minimum pressure of 40psi and maximum of 80psi. The temperature should maintain between 40F to 100F. Otherwise, the system may get damaged.

On the purchase of the WP5 water system, you will be provided with a filter pack. Each filter pack last for a year for 1st, 2nd, 3rd and 5th stages and the 4th stage membrane filter for almost 2 to 3 years. Thus the filter requires less maintenance once installed. Watts WP5 occupies less than cubic feet and fits perfectly under your standard sink. It will leave more space which can be used to store other kitchen objects.

Watts WP5 system had three years limited warranty; it is longer than most of the competitors. Along with the water, system consumers will get a faucet. Installation of the system is also very easy to do, and instructions are present in the manual.

  • Affordable.
  • Easy to install and maintain.
  • Long lasting filters.
  • Slightly high water wastage.
  • Makes noise while filling tank.

Purchase This Product on Amazon

9. iSpring RCC1UP-AK – RO System

iSpring RCC1UP AK water filter systemiSpring RCC1UP-AK is a 7 stage reverse osmosis filter system with remineralization and UV filter. iSpring is one of the most trusted brands for reverse osmosis systems in the US. All the systems and components are manufactured in the United States and received certifications from WQA and NSF. Both the certifications analyses the quality of the product and the quality of the water it produces.

The first five stages of the RCC1UP-AK remove the contaminants from the water. They remove 99% of the pollutants, both inorganic like metals, detergents, nitrates, lead and organic pollutants like bacteria and 1000+ other contaminants. During the filtration process along with impurities, minerals required for the body are also removed. So, in the 6th stage, the water gets remineralized by adding calcium and magnesium (30-60 mg/li).

The 7th stage of the water system consists of a UV bulb that runs on 110watts. It kills most of the virus and microorganisms by destroying the DNA of them. It also comes with a Flow Sensor which cuts the power to UV bulb when there is no flow.

A UV filter required for people who use water from natural bodies like wells and ponds.

iSpring RCC1up-AK filter system comes with automatic shut off feature. It stops the outflow of water once the tank is filled thereby saving water from wasteing. With the booster pump, it could work even when the water flow is having less than 45psi of pressure. The temperature of the incoming water should be between 40F to 100F.

The water system can produce 100 gallons of drinking water per day. RCC1UP reduces the ppm to below 50 which is a good quantity for healthy water. The wastage water to drinking water ration is 2:1, means for every gallon of drinking water it produced 2 gallons of water wasted. This ratio is better than most of the standard RO systems in the market.

Overall it is an all in one advanced product that had most of the features required for a ro system for home. It had primary filtration, remineralization, and UV filter stage. With these filters, you will not only receive pollutants free water but also mineralized water. It is the best reverse osmosis system for people who receive water from wells which had less water pressure had highly contaminated.

  • 100 GPD of water production.
  • Remineralization.
  • UV Filter.
  • Booster Pump.
  • Less water wastage.
  • Expensive but feature rich.
  • May leak if not taken care.

Purchase This Product on Amazon

10. APEC RO-90 Mid Demand Reverse Osmosis System

APEC RO-90 Reverse Osmosis SystemAPEC high flow 90 GPD reverse osmosis (RO-90) filter is a top-tier water filtration system built in the United States for high performance. The RO-90 water system is designed to filter the water in less time without compromising on any specifications. It provides great tasting and fresh water for drinking and cooking purposes. It is also good for smaller offices for drinking fresh water instead of expensive water bottles.

RO-90 is WQA gold seal certified water system which comes with a 5-stage filtration system. 5-stages are as follows 1st stage Sediment, 2nd & 3rd stage Carbon Block, 4th stage Reverse Osmosis Membrane and 5th stage Coconut Shell Carbon. 99% of the impurities and contaminants are removed in these stages. It removes ordinary impurities like sand, dust, chlorine, odor to dangerous contaminants like Arsenic, Radium, lead, nitrates, metals and 1000 types of other contaminants.

Contact the company support directly if you need details about a particular kind of contaminant.

The filtration system comes with an automatic shutoff feature. It will stop the water flow when the filters are filled. It provides fresh water of 90 gallons per day as quoted in the name. Which is more than sufficient for an average household in the United States.

APEC RO-90 system works correctly when the water feed pressure ranges between 40 to 80 psi. The temperature of the water also should not be higher than 100F and lower than 40F. When these conditions are not present, the filtration system may not work or gets damaged.

Readers check the water feed pressure in your home using pressure gauge before opting to buy an RO system.

The weight of the total system is just 12 pounds, and it fits perfectly under your sink. All the APEC systems including RO-90 water system comes with a one-year limited warranty and lifetime tech support. The Ro-90 Reverse osmosis water filtration system had 96% positive rate from more than 500 consumers.

Overall it is one of the best reverse osmosis water filtration systems for high performance with 90 GPD.

  • High performance.
  • Easy to install and use.
  • 99% contaminants removal.
  • 90 Gallons per day.
  • Long lasting filters.
  • Expensive but high quality.

Purchase This Product on Amazon

Buyer’s Guide – Best Reverse Osmosis System

What is Reverse Osmosis and How does it Work?

Reverse Osmosis is a process to separate liquids with different concentrations by applying pressure and passing through the semipermeable membrane. In water purification process the membrane separates the water with high concentrations of impurities from lower concentration. The membrane is a sheet of different layers which is rolled and placed in the membrane chamber. There is enough space for the feed in water to travel through all the layers again and again till the feed out. The water enters the membrane through feed in and rotates through the membrane with high pressure applied. The membrane separates the contaminated water from clean water and collects in the permeate tube. The contaminated water flows spirally through all the membrane till the feed out and gets drained.

Reverse osmosis process removes 95% to 99% of the impurities and produces tasty and healthy water. It removes metals, bacteria, chemicals and any contaminate greater than the size of a water molecule. It can convert sea water into drinkable water at a fraction of the cost.

Reverse Osmosis is one of the vastly used technique to filter water. Not only in the household but also in industries, irrigation, and military.

Stages in a Reverse Osmosis System Filter?

A typical reverse osmosis filter system comes with 4 to 5 stages of filtration. Advanced system will have one or two extra stages which off course comes with an increased price tag. Here are 7 stages of filtration process you will see in this article.

Five Stages in Reverse osmosis filteration

1st stage: 1st stage of any ro water system is sediment filter. It is made from polypropylene and removes significant impurities like dust, sand, rust and particles.

2nd stage: This phase consists of carbon block, as the name indicates it contains carbon as a filter. In this stage taste, chlorine, odor, and colors are removed from the water.

3rd stage: The 3rd stage also consists the carbon block similar to the previous stage. This phase removes the same type of impurities for more quality water.

4th stage: This is the major stage in the system that purifies and removes 99% of the contaminants from the water feed. It had the reverse osmosis membrane that separates water with high impurities from water feed. In this stage highly dangerous arsenic, lead and fluoride removed from the water.

5th stage: The 5th stage consists of coconut carbon filter. It is the last stage in a typical reverse osmosis system. It removes the residual taste from the water which may form in the storage tank.

6Th Stage: This stage is called remineralization, in this stage minerals like calcium and magnesium are added to the water. Reverse osmosis system removes not only impurities but also useful minerals for your body. Here in the 6th stage, the water gets mineralized.

7th Stage: This stage comes with a UV Filter and works on electricity. Microorganisms and viruses will destroy when they come into contact with UV light.

These are the 7 filtration stages you will come across this article. In some systems, the 2nd and 3rd stages will present as one. Only the UV filter stage requires electricity; other stages does not use any power to work.

Is Reverse Osmosis Good or Bad?

The major reason why people say reverse osmosis water is not good for health is it removes minerals. A typical reverse osmosis system removes minerals used by our body along with contaminants. That does not mean our body will not get minerals. The food we consume also provides high amounts of minerals for our body.

Is lack of minerals is your problem for not buying a reverse osmosis system? In that case, you can purchase a reverse osmosis system that had a remineralization stage. In this stage, water gets remineralized and makes water normal for consumption.

All Home Master Reverse Osmosis units come with Remineralization Stage.

Reverse osmosis removes heavy metals from the water which are very dangerous to the health. Taking minute quantities of heavy metals for long periods is unhealthy. The germs and viruses removed from the water may get you diseases like Typhoid, and Cholera.

More importantly, no water filter other than reverse osmosis system removes dissolved salts and contaminants together.

Finally, Reverse Osmosis water is good for consumption.

How much GPD of Reverse Osmosis System should I Buy?

There is no standard amount of water used by a family. The quantity of water required changes depending on their usage.

If an average household in the United States uses filtered water for basic needs like cooking, drinking, refrigeration, and brushing. Then a 50 GPD of water producing reverse osmosis would be enough. 50 to 75 GPD water producing reverse osmosis systems are the top selling ones. Most of the Best Reverse Osmosis Systems produce minimum 50 GPD of water.

However, if the family uses for more activities like cleaning, gardening, and bath, then the quantity may vary. In this case, buyers need to measure the water consumption of the house and buy a suitable system. There are water systems that produce 200 GPD of water per day.

We suggest measuring the water quantity you require for a day before buying a reverse osmosis system.

Note: An average household in the US consists of 2.58 people.

What is Water Feed Pressure and How to Check it?

Water Feed pressure is the pressure asserted by the water flowing through the reverse osmosis system.

A typical reverse osmosis system should have water feed pressure between 40psi to 80psi. If the pressure is below 40psi, then the water filtered by the system will be very low. Therefore, users will not get enough amount of water in a day. If the pressure is more than 80psi, the high pressure will damage the system. If a system damaged due to high water pressure is not eligible for warranty.

To check the water pressure, you can use a pressure gauge which can test the water feed pressure up to 100psi. Before buying a pressure gauge check the size of your water tube. Most of the water tubes in the US are a 3/4th or 1/4th inch, but it is better to check in prior.

If the water pressure is less than 40psi, a booster pump can increase the water pressure to required amounts. A water pressure regulator will decrease the feed pressure to less than 80psi at which a reverse osmosis filter would work.

Which Impurities does an RO System Remove?

Reverse Osmosis systems remove 99% of the pollutants, but that does not mean it can eliminate the impurities you have. They can remove organic, inorganic, chemicals, metals, and much more. However, they may not remove a contaminant which is present in your locale.

Ex: – Most of the reverse osmosis systems remove iron impurities, but Home Master TMAFC does not remove iron.

Contact customer support of the company directly to know information about a particular type of contaminant.

Maintenance Cost of a Reverse Osmosis System?

Maintenance of the RO water systems varies from one product to another. Some filters used in the products will have a longer life than others. Some require cleaning of the system every one year. The cost of the filters will also differentiate between products. Such vast variation is due to the technologies used by different companies.

After buying a reverse osmosis system, you will be needing to change the filter every 6 months or 1 year depending on the product. These filter will cost you from 30$ to 70$ for a set or even less, again depends on the product. Some products rely on the amount of water filtered or the quality of the filters.

You should also change membrane every 2 to 3 years which will be present in the manuals. A membrane also costs between 20$ to 60$.

If the product has extra filters like Remineralization or UV filter, then they will also add additional maintenance costs.

Filters and membranes should change when required. Otherwise, over the time the production rate and quality of water will be decreased.

How to Check the Quality of Water?

The best way to test the quality of water at home is using a TDS meter. TDS meter will provide you the quality of water instantly. It gives the quality in PPM which is Particles Per Million parts.

On average the water you get through pipelines would have a ppm ranging from 250 to 500ppm. Water with such high ppm is not healthy for the body.

A typical reverse osmosis system reduces the amount to 35 or even less. According to the health experts, water having less than 50ppm is healthy to drink.

Frequently Asked Questions (FAQs)

What is Remineralization?

During filtration reverse osmosis system along with impurities, it removes minerals. Remineralization adds those minerals to the filtered water which required for the body. It adds calcium and magnesium (30mg/li) for filtered water.

Does reverse osmosis systems use Electricity?

Regular reverse osmosis system does not use electricity to filter water. If the system is having booster pump or UV filter stage, it needs electricity.

Can I use a water softener with RO system?

A water softener adds alkaline substances to water to make it soft. So, you need to connect to a softener after reverse osmosis system filters the water. If you do it in opposite way, the minerals added will be removed by RO system.

Can I connect RO system to a Refrigerator?

Yes, you can attach to a refrigerator or Ice maker with correct fittings. Users should also check for the pressure supported by the system and product.

Apec vs iSpring which is the Best RO System brand?

Both the RO system makers are best brands, but when compared to Apec Vs iSpring we prefer Apec. However, your opinion may vary.

Home Master Vs Apec, Best Reverse Osmosis System?

Apec and Home Master are some of the best RO brands, choosing the best one between Apec vs Home Master is tricky. If you can afford Home Master had some of the best and advanced brands and getting popular among households recently. Apec is best for people with a limited budget but its no less than home master systems.

How much water wasted per gallon of filtered water?

A reverse osmosis system drains 2 to 3 gallons of water for every one gallon of fresh water it produces. The wastage varies from one product to other.

Do I need a plumber to install?

Most of the present day reverse osmosis system is easy to install. All the instructions will be present in the manuals, and many companies provide necessary tools. There are plenty of videos on YouTube and company websites on how to install the product.

Everyone needs to remember that we are all working hard every day just to live happy and healthy. So, we should first take care of our family health before anything else.

Other Similar Articles:

  • Home Master TMHP (Most Advanced)
  • APEC ROES-50 Water Filter (Top Seller)
  • iSpring RCC7 75 GPD (Best Deal)
  • iSpring RCC7AK (Remineralization)
  • APEC RO-PERM (Low Water Pressure Homes)
  • Hydro Logic 31040 (Heavy Duty)
  • Watts WP5-50
  • iSpring RCC1UP-AK
  • Home Master TMAFC
  • APEC Water Filter RO-90


On the bottom line, if you are looking for a filter which removes most contaminants, then the reverse osmosis filtration is the best process. Reverse Osmosis removes 99% of the contaminants and salts. Don’t forget to check the water pressure and amount of water you consume before buying a product. Your money would be absolutely wasted if the product is not performing according to your needs. People drawing water from wells must need to purchase a Reverse Osmosis system as they contain bacteria and virus in high quantities.

MyHomeAppliances is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon (.com, .co.uk, .ca etc) and any other website that may be affiliated with Amazon Service LLC Associates Program.

About the author

John Clark

John has been working in consumer appliances store for past 16 years. He is very passionate about his work and looking for various appliances reviews from his customers in those years. He loves to write well-researched articles on various home appliances.

Leave a Comment