How To Sanitize Reverse Osmosis System (RO) | Flush or Cleaning Process

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According to almost every manufacturer’s instruction, a reverse osmosis filtration system must be sanitized once a year. This is the case even if you buy a top-rated RO System for your home.

Most of the filters are to be replaced every year, so it is a good idea to do the sanitization during these replacements.

Don’t you worry because this process isn’t so hard and time taking as you might think of it? With little concentration and determination, there is nothing you can’t do and this is just a cleaning process.

Reverse osmosis systems are considered to be the best choice to get clean and purified drinking water. However, cleaning and maintaining your RO systems is mandatory so that they continue with their high-end performance.

Benefits Of Reverse Osmosis System 

RO filters are the top-selling filters not only in the US but worldwide. People trust the reverse osmosis method because it gives surety of purified water by making a one-time investment.

There are uncountable benefits of using s reverse osmosis system as your water purification source. Some of them are stated below:

  • Money-saver
  • Easy maintenance
  • Different levels of purification
  • Space-saving designs
  • Energy-efficient 
  • Protects your plumbing fixtures
  • Elongates the lifespan of appliances
  • Better tasting water
  • Removes every harmful contaminant

Why Do RO Filters Need Cleaning

While most of the people have this assumption that RO filters can go for years without any maintenance or cleaning, they do need proper care.

Fact! It is a misconception that the quality of water won’t change if you don’t sanitize the system.

RO systems kill bacteria, viruses, and hundreds of other contaminants. However, if the filter is not cleaned timely, the filth will get mixed in the water again.

It is not about just cleaning to get clean water. You have to sanitize your reverse osmosis system because constant maintenance and cleanliness will make this system durable and long-lasting. It will protect it against any damage, corrosion or rust

What You Need For RO System Sanitization

There is a checklist that you will have to follow, once you have made up your mind to clean the filter. Make sure you have all the below-mentioned items with you at the time of sanitization:

  • Pre- and post-filters
  • RO-membrane
  • O-rings (optional)
  • Empty housings 
  • Sanitizer or unscented bleach
  • Sanitation gloves
  • Eye protection

Steps To Sanitize Reverse Osmosis System

We have brought a step by step guide to sanitize reverse osmosis system so that you can easily understand every tiny detail of the process. 

  1. Get the filters and membrane ready for replacement, but don’t open them until the end.
  2. Make sure you switch off the water supply connected to the RO system.
  3. If the system is connected to your refrigerator, dishwasher, or ice maker, make sure to disconnect is as well.
  4. Now wash your hands, wear your gloves, and eye protection gear.
  5. Drain the whole system by opening the RO filter faucet. Once it is done, close the faucet.
  6. Open the housing, take out the filter, and remove the pre-filter from there.
  7. Repeat the process for the others filter as well and remove the membrane.
  8. Pour the sanitizer or unscented bleach in the pre-filter housing and switch the water back on to refill the system. It can take 15 to 20 minutes for the tank to refill.
  9. Open the faucet and allow the whole system to drain again. You will need to completely flush the system to allow the cleaner to rinse. Do this process at least twice for perfect results. 
  10. If you are still doubtful about any foul smell or taste in the water, you can repeat the flushing process once more.
  11. Turn off the water supply one more time. Open all the housings and replace the filters.
  12. Switch the water and recheck for any loose fittings or leak.
  13. Wait for your tank to be refilled again. 
  14. Don’t forget to re-connect your dishwasher or refrigerator!
  15. When it is done, you can have clean and purified water once again. With this easy guideline, you can enjoy the best water drinking experience

Tips Before You Sanitize

  • If you are sanitizing the system for installing new filters, make sure all the filters remain packed until the sanitization is completed.
  • The area where you are cleaning your RO system should be free from any excess dust or dirt. 
  • Wear gloves or wash your hands properly with soap after sanitization.
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