Please refer to our step by step video guide for installation of both the 4-stage reverse osmosis system and the 3-stage reverse osmosis system.

Please refer to our Filter Replacement Schedule for suggested replacement of Stage 1, 2, 3, and 4 filters for the Pure Blue H2O 4-Stage Reverse Osmosis System.

Timely replacement of aging filters will optimize the performance of the system and recently changed filters.

We recommend changing your Stage 3 Membrane Filter every 2-5 years based on your incoming water quality. Watch this video to learn how to perform a filter change for your Stage 3 Membrane Filter.

The red light appears after 2,000 minutes of water usage and indicates that it is time for a 6 month filter (Stage 1 and 2) change. You must manually reset the faucet battery for the light to appear blue again. Watch this video on how to reset the AirGap faucet batter.

Tools required: Bike pump and digital tire gauge

1. First make sure you turn off your cold water supply.

2. Next you’re going to drain your tank (you never want to check your tanks pressure with water in it)

3. Locate the blue cap towards the bottom of your tank. To remove, simply screw off.

4. Next, using your digital tire gauge, check the pressure of your tank. Your pressure should be at 5-7 psi using this range you can figure out if you need to add or remove pressure.

5. If you have above 7 psi you will need to let out pressure, using the end of a pencil or pen press on the shrader valve until your digital tire gauge reads between 5-7 psi.

6. If you have below 5 psi you will need to add pressure using a bicycle pump. Attach the pump to the shrader valve and pump air into your tank until your gauge reads between 5-7 psi.