How to Change a Reverse Osmosis Filter: A Step-by-Step Guide

A reverse osmosis filter is a type of system that removes many different types of contaminants that are found in drinking water. It can also remove them from wastewater. The major difference between an RO filter and other types of filters is the way it purifies water. Instead of removing contaminants through chemical reactions, it forces water to go through a semipermeable membrane under pressure, which removes most contaminants.

Changing your RO filter regularly is important in order to maintain the effectiveness of your system, to prevent growths in or around the system, and to minimize the risk for bacterial growth in your water supply. Here are some steps on how you can change your filter with ease!


How do I know if my filter needs to be changed?

The easiest way to tell if your filter needs to be changed is by looking for physical signs of wear and tear. One indication that it might need to be replaced is if the water pressure in the house declines while the water is being filtered, or if you notice brown or rusty colored water coming out of your faucet.

You should also change your RO filter once a year, regardless of whether you see any physical signs of wear and tear. Some filters are set to remind you when they are due to be changed, so check with your manufacturer to see if this applies to your system.

Steps for changing your filter.

1) Turn off the water supply to your system

2) Undo the connections around the system, including the tubing

3) Remove any old filter material from the tank

4) Clean any corrosion or sediment from your system

5) Insert a new filter cartridge into your tank

How To Replace Your Reverse Osmosis Filters and Membrane - APEC Water Installation Part 6

Problems that can arise when changing filters

While changing your filter is an important process, it has the potential to lead to some problems. The most common of these are bacterial growth in your water supply.

This can be problematic because of how fast bacteria can multiply and spread, creating a toxic environment for your family. This risk can be reduced by changing your filter regularly and making sure you disinfect the system before adding new water.

Additionally, if you don’t change your RO system’s filters regularly enough, contaminants will grow within the system. This can get into your drinking water or get into wastewater that’s being sent out of the house for processing elsewhere.

Changing filters is an important step in any RO system maintenance plan. Without it, you run the risk of contaminating either your drinking water or wastewater with harmful growths that could make you sick!

How often should you change your filters?

It’s important to change your filters on a regular basis. The frequency of changing the RO filter will depend on your water quality and usage. If you have a well with high mineral content, your filter will need to be changed more often than someone with city water that has low mineral content.

If you’re using an RO system as a backup for reverse osmosis, then it’s recommended that you change the filters monthly. If you’re using an RO system as your main water supply, then it’s recommended that you change the filters every three months. This is due to the higher flow rate of city water compared to well water.

If you are unsure about how frequently your RO filter should be changed, contact your contractor for assistance. They can help you determine what may work best for your needs!

How to change your RO filter

The following steps will show you how to change your filter with ease:

1. Remove the old filter from the system by unscrewing the old filter and removing it from the system.

2. Place a new filter inside the system and tighten it with a wrench, if necessary.

3. Run water through your RO filter for at least one hour to ensure that all of the air bubbles are gone and that the water is flowing smoothly through the system. This will also help remove any impurities left on or in your filter and flush out bacteria.

4. Disconnect your garden hose from your faucet and connect it to a nearby drain, so water can flow down easily without overflowing anywhere. The easiest way to do this is to use a Y-connector or T connector on one end of your hose so you can attach two hoses to one faucet at once!

5. Once an hour has passed, turn off your faucet and disconnect both hoses from both ends of the Y-connector or T connector – just remember which side was connected first and which side should be disconnected last!

6. Allow water to continue running into drain until no more bubbles appear in the line

Tips for changing the filter

1) Your RO filter should be changed every 2 to 3 months, depending on the quality of your water.

2) Turn the water off before you start changing your filter.

3) Place a bucket under the faucet and turn it on to let air out.

4) Disconnect the two hoses from the faucet attached to your system.

5) Loosen the collar around the filter housing by turning it counterclockwise with a wrench.

6) Remove the old filter from your system and clean off any debris from inside of it.

7) Put a new filter in place and tighten it into place with a wrench by turning it clockwise until it’s snug again.

Meet the author: Jessica Chen

Jessica is a fishing enthusiast and yoga fanatic who enjoys traveling the world and reading books about Buddhism. She has a passion for writing, food, and wine. “Winter is my favorite season. I love sitting by the fire with a good book and a warm cup of hot chocolate.” Learn more about Jessica and the rest of the team.