Frequently Asked Questions

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.

• 4 Stage Installation Guide
• 3 Stage Installation Guide 

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

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

If you have recently ordered our annual 5 pack of replacement filters you may be wondering why there was no blue Stage 3 Membrane Filter included. Your first year of filter changes a Stage 3 Membrane Filter would not need to be changed since Stage 3 Membrane Filters are typically changed every 2-5 years. The annual 5 Pack of 4-Stage Reverse Osmosis System Replacement Filters includes two Stage 1 Sediment Filters, 2 Stage 2 Pre-Carbon Filters, and one Stage 4 Post-Carbon Filter.

Please refer to our Filter Maintenance Schedule for filter replacement recommendations. 

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 battery. 

The light should only go off every 6 months to indicate filter changes. If you are having issues with it, follow these steps:

1. Remove the battery box

2. Locate the triangular shaped black metal piece

3. Gently push down on the clip to ensure better contact with the battery

If this does not solve the issue, contact customer service. 

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. 

Did you install your “Flow Restrictor” into the Reverse Osmosis Membrane Filter (Stage 3 Filter)?

To pull out the red tube from stage 3 filter hold down on the top of the white collet on the top of elbow and pull out red line while holding down.

Step 1: This is the flow restrictor with the red tab end down and clear tube end facing red line.

Step 2: Insert the clear end into the red line going to faucet.

Step 3: Make sure the red end is flush with your red line.

Re-insert the red line with restrictor in place back into the third filter/membrane elbow.

NOTE: It must be inserted all the way in the red tube coming from the faucet. It does take approximately 6 to 8 hours for the tank to fill up completely, so if you just installed the system, please give it time to fill up. 

Anytime the air gap window (tiny hole on the faucet) is leaking it’s because of the 3/8” white tube connected to the drain line which is gravity-fed and needs to be on a vertical slope with no extra length. This is the only line that does not require pressure to push the water so that’s why it needs to be as short and straight as possible. If you have had your system for over 4 months we suggest you clean your drain line. Watch this video for reference. 

First try the following troubleshooting steps to resolve slow flow.

• Make sure filters are fully twisted into place
• Make sure filter changes are up to date
• Check to make sure your flow restrictor is properly installed
• Determine whether you are on a city or well water supply. For city water re-pressurize your tank. For well water increase your PSI to 40.

If you need to re-pressurize your tank:
Tools required – Bike pump and digital tire gauge

1. 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.

Additional troubleshooting steps to resolve slow flow.

• Make sure filters are fully twisted into place
• Check your flow restrictor connection
• Determine whether you are on a city or well water supply. For city water re-pressurize your tank. For well water increase your PSI to 40. 

Run to fridge and faucet: (If fridge line is 1/4")

1. Cut blue tube from faucet and insert 3/8" x 1/4" x 3/8" T fitting
2. Put the fridge line into the 1/4" side
3. Put the blue tube into 3/8" side
4. Put a 1/4" shut off valve on the fridge line
5. Keep fridge line shut off until tank is completely full. Then, turn on the water to allow pressure to be built up (you only need to do this once).
6. Video link: https://www.youtube.com/watch?v=zj07ADHC6C8

Run to fridge only: (If fridge line is 1/4")

1. Disconnect blue tube from faucet and attach one end to manifold in port marked "faucet"
2. Attach other end to water line of refridgerator with a 3/8" to 1/4" quick connect fitting
3. Remove red tube from faucet and insert the end containing the flow restrictor into the stage 3 (blue) filter elbow
4. Since you are not using the air gap faucet, you will need to install a one-way check valve into the red tube
5. Install drain connector to drainpipe and use a short length of the white 3/8" tubing to make a good connection
6. Use another 3/8" to 1/4" quick connect to attach the red tube to the white tube for the waste water 

See all the details in our Performance Data Sheets. 

Do you know what your incoming water pressure is?

When there is higher water pressure going into the system, the drain lines create a venturi effect at the air gap in the faucet. The air gap is where the rinse water (red tube coming up from the third filter) meets with the drain line (the white tube going down to the drain connector). The red ¼” tube (from the membrane) is under pressure, and the white 3/8” tube ( going into the drain) is simply gravity fed; meaning it doesn’t have any pressure that pushes the water. The sucking noise is just the systems way of trying to equalize the pressure between the two lines.

Other noises that you hear coming from that line could include a water dripping sound. This is produced when the rinse water comes out of the 3/8” white line and drops into the sinks drain pipe. This rinse water is free falling into the water that is in the sinks P-trap.

This noise can be eliminated by tying a fishing line around the outside of the drain clamp and feeding that fishing line down inside of the drain pipe. What this does is allow that rinse water to now have a place to drain down, instead of simply just falling into the drain.

The 3/8” white tube from the bottom of the reverse osmosis (RO) faucet is a gravity-fed tube; it does need to be cut as short and as straight as possible. Over time you can also get debris buildup inside of this tube as well. Since this white tube is gravity-fed any sort of restriction/obstruction to the flow of water through the tube can cause the air gap hole on the base of the faucet to make noise or leak. This video shows the best way we recommend to clean out eh white drain tube, to ensure that the water flows freely into your drain pipe. 

Please refer to our step by step video guide for installation. 

651 Gallons of water or about 6 months. 

No. Drilling isn’t required. No third faucet hassles. And no holes to drill in your countertop. 

Replacing the filter is incredibly easy! TWIST LOCK: When it comes time to change it, just twist off the current filter and put a new one on. 

Without a water filter your water is filled with chlorine, when chlorines dries it crystallizes and grows in size overtime. This weakens your hair and makes it more susceptible to split ends and hair loss. Our KDF-55 Media is designed specifically to remove chlorine and water-soluble heavy metals. It is able to control scale, bacteria and algae. 

This amazing product filters 30,000 gallons of water which is equivalent to 1,587 showers lasting 10 minutes each. The recommended time for a high-volume household is 1 year. 

No tools needed, easily remove your old shower filter and replace it with this in minutes. Installs on any standard ½” threaded shower arm. View step by step guide here .

The lights change color depending on the water’s temperature. The LEDs provide the perfect shower, every time. It does not need batteries as it is water-powered. 

No. You don’t even need tools. Easily remove your old shower filter and replace it with this in minutes. Installs on any standard ½” threaded shower arm. It’s preassembled and ready to go.  

It works great with our Rain Garden LED showerhead, but it can work with any standard showerhead. Even the one you already have. 

It filters 10,000 gallons of water which is equivalent to 529 showers lasting 10 minutes each. If you only shower once per day, that’s over a year of showering before the filter needs to be changed. For a high-volume household, the recommended amount of time is 6 months. 

Choose from a pulse setting for a relaxing muscle massage to a full body spray for maximum water coverage. There are five different settings to suit your mood. 

Read the manual for installation here . Call customer service with any questions.

If the faucet has a removable aerator (threads) than additional adaptors can be purchased at your local hardware store.

Note: The countertop units do not work with pull down faucets. 

You need to determine the thread size of your aerator.

You can take your aerator and the diverter valve to your local plumbing supply or hardware store to have them match the size. 

55/64 Female connection 

You will need to replace the diverter valve. 

You will experience a drop in pressure and/or difference in taste and/or odor. The system has a 30,000 gallon capacity, or up to 10 years in a standard home.

The unit needs to be replaced. 

The unit is certified under the standard 42 reduction through NSF. The certification is for chlorine, taste, and odor. 

No, if you are looking to remove flouride please consider our 3 or 4 stage reverse osmosis system. 

No, if you are looking for an easy under the counter system please consider our single stage direct connect system.  

It depends on the quality of the water and the usage in the house hold. On average the unit will last for 30,000 gallons or around 10 years. 

No. If you’d like to continue to use the Guardian Max filter, you’ll have to order replacement filters, but it’s not necessary. This is powerful long lasting countertop filter, even without the Guardian Max bonus.

The Guardian Max filter reduces more than 99% of lead and cyst for 1000 gallons or 6 months, as well as enhancing additional removal of chlorine, taste and odors.