my aquasana water pressure is really slow from the new faucet

Diagnosis

The sudden drop in water pressure following the installation of an Aquasana Claryum 3-Stage Max Flow system is typically caused by one of three specific issues: trapped air pockets (air lock), an improperly seated filter cartridge, or a kink in the flexible tubing. Because this is a multi-stage system, any air trapped within the filter housings creates resistance that prevents the water from flowing at the rated "Max Flow" speed, effectively acting as a physical blockage. Furthermore, if the filter cartridges were not pushed firmly into their sockets until they "clicked," the internal valve may not be fully open, restricting the flow of water through the Claryum media. You can confirm an air lock if you hear "sputtering" or "coughing" sounds from the faucet when you first turn it on. If the flow is a steady but very thin stream, the issue is likely a physical restriction in the tubing or a partially closed shut-off valve on the cold water line.

How to Fix It

To restore full pressure to your faucet, follow these precise calibration and purging steps:

1. Check the Shut-off Valve: Ensure the cold water supply valve under the sink is turned fully counter-clockwise. Even a quarter-turn of restriction at the source will drastically reduce the flow through the three stages of filtration.
2. Reseat the Cartridges: Turn off the water supply. Remove each of the three filter cartridges. Re-insert them one by one, applying firm pressure until you feel a distinct click or the cartridge sits flush against the housing. If a cartridge is skewed by even a few millimeters, the internal seal will restrict flow.
3. Inspect the Tubing: Trace the 1/4" and 3/8" tubing from the wall valve to the filter and from the filter to the faucet. Ensure there are no sharp 90-degree bends. Use a plastic tubing support or a gentle arc to ensure the path is clear.
4. Perform a System Purge: Turn the water supply back on slowly. Open the faucet and let the water run for 10 to 15 minutes. This is critical for the Claryum Max Flow system to displace all air trapped in the carbon and ion-exchange resin.
5. Clear the Aerator: Unscrew the aerator from the tip of your new faucet. If carbon fines (small black particles) from the new filters have migrated to the faucet head, they will clog the aerator mesh. Rinse the aerator under a separate tap and reinstall.

If That Didn't Work

• Check for "Kinked" Lines: If you have pushed the filter system too far back against the wall of the cabinet, the flexible tubing may be pinched. Pull the system forward 2-3 inches to see if pressure returns immediately.
• Verify Valve Compatibility: If you are using a diverted T-valve, ensure the diverter handle is turned completely to the "Filter" position. A partially open diverter will starve the system of pressure.
• Test the Source Pressure: Disconnect the filter system and run water directly from the shut-off valve into a bucket. If the flow is weak here, the problem is with your home's plumbing or a clogged supply valve, not the Aquasana system.
• Replace a Defective Cartridge: In rare cases, a cartridge may have a collapsed internal membrane from the factory. Replace the cartridges one by one to identify if a specific stage is causing the pressure drop.

Heads Up

• Flush Period: Always run the water for at least 10 minutes after any filter change; failing to do so can leave air pockets that permanently reduce flow rate.
• Avoid Kinking: Never use zip-ties too tightly on the tubing, as this can create "necking" that restricts the Max Flow capacity.
• Carbon Fines: It is normal to see a few black specks during the first hour of use. These are harmless carbon fines, but they can clog high-end faucet aerators if not flushed properly.
• Replacement Schedule: Replace cartridges every 6 months. Overloaded filters accumulate sediment and contaminants that physically block the water path, leading to a gradual loss of pressure over time.