Under Sink System Maintenance: Sanitizing the RO Holding Tank

The RO system should be sanitized once a year. We recommend that you do the sanitizing process each time you replace the VOC filter, every 12 months. Always complete the sanitizing process before you replace the VOC filter.

For best results - A sanitizing solution containing 2 tablespoons of household bleach is recommended. To ensure that the tank gets sanitized, check that the bleach hasn't expired. If it has expired, buy new bleach.

Before you start sanitizing:

1.    Make sure you have sanitizing solution and a new VOC filter.

2.     Ensure the surface area is free of any excess dirt or dust in order to avoid cross contamination.

3.     Wash hands with soap and water and/or wear sanitary gloves.

Always follow the safety precautions recommended for your sanitizing solution.

How to Sanitize Your RO Holding Tank

1.     Turn off the cold water supply line to the RO system. (Fig 1).

2.     Open the RO water faucet, and empty the water out of the RO holding tank. Before proceeding, make sure that the tank is completely empty. Turn off the RO water faucet once tank is completely empty. (Fig 2).

3.     Unscrew the top cap of the TruPure holding tank sanitizer. Note: If the tank is not completely empty, the RO holding tank and sanitizer will spray water when opened since both are pressurized. (Fig 3).

4.     Pour 2 tablespoons of bleach into the tank sanitizer. If there is too much water in the sanitizer to add bleach, pour the water out before adding the bleach. (Fig 4).

5.     Reattach the top cap on the tank sanitizer, make sure that it is on tight. (Fig 5).

6.    Turn on the cold water supply line for the system. Allow at least 2 hours to fill. (Fig. 6).

7.     Empty and refill RO tank 2 more times. (Fig 7).