A reverse osmosis system should be sanitized once each year. You may consider thoroughly sanitizing your Reverse Osmosis drinking water system while replacing your reverse osmosis water filters, which occurs every 6-12 months (depending on water conditions and system usage).
Your system can be sanitized with two to three tablespoons of unscented household bleach or non-bleach Sani-System sanitizer, which is proven to kill 99.99% of harmful bacteria.
Below is a video that explains how to use the Sani-System sanitizer.
Tips Before You Begin Sanitizing Your RO System
Below are general instructions for cleaning and sanitizing most RO drinking water systems.
Turn off the cold water supply line to the RO system.
If your system is connected to your refrigerator or icemaker, turn off the line going to the icemaker.
Open the RO water system faucet and drain all water from the system and storage tank.
Once the system is empty be sure to place RO faucet handle in the closed position.
Open the pre-filter housing, which is typically the filter closest to the feed water line. Remove the pre-filter and discard if replacing with a new filter after sanitization process. Leave the filter housing off.
Remove all remaining filters and the reverse osmosis element (membrane). If you have an inline post filter on your RO filter system, leave the old filter in place. Discard old filters if installing new filters. Learn more about installing RO membrane and filter replacements.
Reconnect all empty housings to the system, except the pre-filter housing. There should be no filters in any housings at this point.
Pour entire packet of Sani System Sanitizer directly into the pre-filter housing. Or, alternatively add two or three tablespoons of bleach to the pre-filter housing (5.5% unscented bleach).
Re-connect the pre-filter housing back onto the system with the sanitizer solution inside.
Turn on the cold water supply line for the system to fill with the sanitizing solution. Check for any leaks.
Allow system to fill with water. Time will vary depending on water pressure. However, the system should be full within 5-10 minutes without the filters or membrane installed.
Turn on the RO faucet until water begins to flow out, then turn off the faucet.
If using Sani system Sanitizer, let system set for at least 60 seconds. If using bleach, let the system set for at least 30 minutes.
After set time, flush system by turning on the RO faucet and letting water run through the system for 5 minutes, or until bleach odor is gone.
Turn off the cold water supply line. Turn on the RO faucet. Drain the system completely. Repeat this step twice
After draining the system completely the second time, replace or re-install all filters and membrane.
Turn on the cold water supply line and check for leaks
Allow the system several hours for the RO membrane to refill the storage tank.
RO Service Kit INCLUDES:
Sani-System is approved by NSF and EPA for use in RO systems. Proven to kill 99.99% of harmful bacteria, it achieves this without the need for chlorine, oxidizers, or acids, safeguarding system components. The concentrated formula within each premeasured packet efficiently sanitizes equipment within 60 seconds. Buy Sani Packet Only
Because of the systems’ design, the PuROTwist Reverse Osmosis System requires a unique sanitization process.
The PuROTwist Reverse Osmosis Systems’ filter and housings are designed to make filter and membrane changes easy. Simply twist the used filter off and twist the new filter on. It's simple and quick, with no mess.
The following instructions are meant only for the PuROTwist RO System.
We recommend purchasing the RO sanitizing kit for your PuROTwist system that includes EPA & NSF approved non-bleach Sani-System sanitizer. These kits are a safe, easy, and effective method to sanitize the complete PuROTwist reverse osmosis drinking water system.
The kits listed below include everything you'll need to assist in replacing filters and sanitizing your PuROTwist RO Drinking Water System.
This kit includes everything you'll need to assist in sanitizing your 4-stage PuROTwist reverse osmosis system. This value kit Includes:
4x Empty Q-Series Filter Housings - REUSABLE
1x System Sanitizer Packet that Kill 99.99% of Harmful Bacterial (SS25RO)
This kit includes everything you'll need for sanitizing your 3-stage PuROTwist reverse osmosis system. This value kit Includes:
Tips Before You Begin Sanitizing the PuROTwist RO
Turn off the cold water supply line to the RO system.
If your system is connected to your refrigerator or icemaker, turn off the line going to the icemaker.
Open the RO water system faucet and drain all water from the system and storage tank.
Once the system is empty be sure to place RO faucet handle in the closed position.
Remove all Q-series filters and membrane. Unscrew counterclockwise. There may be a small amount of water that will run from the unit so have a small towel available. Discard filters if replacing with a new filter after the sanitization process.
Remove the yellow sanitary plugs from one of the empty sanitizing housing canisters.
Pour entire packet of Sani System Sanitizer directly into the housing canister. Or, alternatively add two or three tablespoons of bleach to the housing canister (5.5% unscented bleach). Since the opening is small, a funnel or measuring cup with a lip may be helpful.
Re-connect the housing with the sanitizing agent back onto the system in the pre-filter position.
Remove the yellow sanitary plug from all of the remaining empty sanitizing housing canisters and thread them into the remaining slots on the system.
Turn on the cold water supply line for the system to fill with the sanitizing solution. Check for any leaks.
Allow system to fill with water. Time will vary depending on water pressure. However, the system should be full within 5-10 minutes without the filters or membrane installed.
Turn on the RO faucet until water begins to flow out, then turn off the faucet.
If using Sani system Sanitizer, let system set for at least 60 seconds. If using bleach, let the system set for at least 30 minutes.
After set time, flush system by turning on the RO faucet and letting water run through the system for 5 minutes, or until bleach odor is gone.
Turn off the cold water supply line. Turn on the RO faucet. Drain the system completely. Repeat this step twice
After draining the system completely the second time, replace or re-install all filters and membrane.
Replace or re-install all Q-series filters and membrane.
Turn on the cold water supply line and check for leaks.
Allow the system several hours for the RO membrane to refill the storage tank.
