FAQs
- How do I clean my water flosser?
Clean your water flosser monthly for optimal performance:
- Outside, Tip, & Handle: Wipe the exterior with a soft cloth and non-abrasive cleanser. Remove the tip and soak it (and handle for countertop models) in a vinegar-water mix (1:2) for 5 minutes.
- Water Reservoir: Detach the reservoir. If it has a black valve, remove and clean it under warm water for 30-45 seconds. Place the reservoir in the dishwasher's top rack or hand-wash with warm soapy water. Air dry or skip heated drying. Reattach the valve (dome side up) if removed.
- Inside: Run a vinegar-water mix (1:2) through the flosser, followed by clean warm water.
- Replace tips every 3-6 months.
For additional details and an instructional video, see How to Clean a WATERPIK Water Flosser.
- The flossing tip has broken off and is still in the handle, how do I remove it?
Method 1: Obtain a pointed, threaded metal screw. Insert the screw into the broken tip until wedged. Press tip eject button and remove the screw; the tip should come out with it.
Method 2: With water in the unit, point the tip/handle into sink. Press the tip eject button. Turn unit on with high pressure; the broken tip should dislodge.
- Why is the water flosser pressure becoming weaker?
This issue is most commonly caused by: clogged tip, use of additives and lack of cleaning, or clogged reservoir vents (cordless handheld units).
Try the following:
- Change the flossing tip
- Clean the existing tip by soaking in solution of 50/50 vinegar and water and clear the tip with a sewing needle
- If additives are used in your unit OR the unit has never been cleaned, do a deep clean with a 50/50 solution of warm water and vinegar and run through unit
To clear the vents (cordless handheld units):
- Detach the reservoir from the power handle
- Locate the small vent holes. For most cordless handheld units, they are located on the top of the detached reservoir. For the Cordless Advanced model, they are located on the unit, near the reservoir water straw connection.
- Carefully insert a needle into each hole to remove any blockage; use gentle pressure to avoid damage
- What should I do if the water flosser is running but water does not flow (priming)?
- If water does not flow, place the flossing tip in mouth and turn device to lowest setting. Draw on the tip as if it were a drinking straw. Also check for blockages and ensure the water reservoir is properly seated. If issues persist, consult the user manual or contact our customer service team.
- How do I charge my WATERPIK water flosser?
To charge your water flosser, use a user-supplied USB wall charger with a 5.0V, up to 3.0A output. Connect the charging cable to the adapter and plug it into a wall outlet. Attach the other end to the flosser and charge for 4 hours before first use. A full charge lasts up to 9 weeks. Ensure the charge port cover is flush with the handle after charging.
Charge light indicators:
- Flashing White - Unit is approaching low battery level
- Solid Red - Battery is depleted; unit needs to be charged
- Pulsing White (while charging) - Battery is currently charging
- Solid White (while charging) - Battery is fully charged; stays lit until USB cable is unplugged
- Why is my WATERPIK water flosser not turning on?
If your unit won't turn on, it may be due to battery depletion, water intrusion, or charging issues.
Check the following:
- Charging regimen: Ensure you are charging correctly (see charging FAQ)
- Additives and cleaning: Verify the unit is clean (see cleaning FAQ) and additives are compatible.
- Weather cap: Ensure the charging port's weather cap is intact to prevent water intrusion
- Charging brick: Check for compatibility and damage. An incompatible or damaged brick may prevent charging
Examine the battery indicator light/LED:
- If the light is off, plug the unit in. If it turns on, charge for 4 hours
- If the light remains off when plugged in, contact customer service
- If the LED blinks red, the unit is in lockout due to low charge and needs a 4-hour charge
