How to Use the Black Aquarius Water Flosser (WP-662): A Step-by-Step Guide
By Waterpik™ Oral Health - Water Flossers, Electric Toothbrushes | Published: 2026-08-02
Category: How-to Guides
Master the Black Aquarius Water Flosser (WP-662) with this step-by-step guide. Learn setup, daily use, cleaning, and troubleshooting tips for optimal oral health.
The Black Aquarius Water Flosser (WP-662) is a popular countertop model known for its sleek design and powerful cleaning action. If you've just unboxed yours or are considering a purchase, this guide will walk you through everything from setup to daily use, ensuring you get the most out of your device.
Water flossing is an excellent addition to your oral care routine, especially if you have braces, implants, or simply want a deeper clean than string floss can provide. The Aquarius WP-662 offers multiple pressure settings and a large water reservoir, making it suitable for the whole family. Follow these steps to master your Black Aquarius and achieve a healthier smile.
Unboxing and Setup
When you first receive your Black Aquarius Water Flosser, carefully remove all components from the box. You should find the main unit, a water reservoir, a flosser handle, and a variety of tips (including the classic jet tip and a tongue cleaner). Check that all parts are present and free from damage.
Place the unit on a flat, stable surface near an electrical outlet. The Aquarius is a countertop model, so it needs to be plugged in. Attach the reservoir to the base by aligning the tabs and pressing down until it clicks into place. Fill the reservoir with lukewarm water—avoid hot water as it can damage the unit—and snap the lid shut.
- Ensure the power cord is not in a high-traffic area to prevent tripping.
- If you have sensitive gums, start with the lowest pressure setting (10) and gradually increase.
Choosing and Attaching the Right Tip
The Aquarius WP-662 comes with several tips for different needs. The Classic Jet Tip is the standard for everyday cleaning. The Orthodontic Tip is ideal for braces, and the Pik Pocket Tip is designed for periodontal pockets. Choose the tip that suits your oral care needs.
To attach a tip, insert it into the center of the flosser handle until it clicks into place. Ensure it is secure before turning on the unit. To remove a tip, press the release button on the handle and pull the tip out. Rotate the tip to the desired angle for comfortable access to all areas of your mouth.
- Replace tips every 3-6 months for optimal hygiene.
- If you share the flosser, use different colored tips for each family member.
Step-by-Step Usage Instructions
Start by filling the reservoir with lukewarm water. Place the flosser tip in your mouth before turning on the unit to avoid splashing. Lean over the sink and close your lips enough to prevent water from spraying out, but allow water to flow from your mouth into the sink.
Turn the unit on and select your desired pressure setting. Start with a low setting (10) and gradually increase to your comfort level. Glide the tip along your gumline, pausing briefly between teeth. Aim the tip at a 90-degree angle to your teeth to effectively clean between them and below the gumline.
Continue until you have cleaned all areas of your mouth, typically taking about 1-2 minutes. When finished, turn off the unit and press the release button to remove the tip. Empty any remaining water from the reservoir and handle.
- For best results, use the water flosser before brushing your teeth.
- If you have sensitive gums, use the lowest pressure setting and gradually increase over time.
Cleaning and Maintenance
Proper maintenance ensures your Aquarius WP-662 lasts for years. After each use, drain the reservoir and wipe the unit with a soft, damp cloth. Do not immerse the unit in water. Clean the tips regularly by rinsing them under warm water and using a brush to remove debris.
Once a month, deep-clean the reservoir and handle by filling the reservoir with a mixture of water and white vinegar (2 tablespoons per full reservoir). Run the flosser with this solution, then rinse thoroughly with clean water. This helps remove mineral deposits and keeps the unit fresh.
- Store the unit with the reservoir empty and the lid open to allow drying.
- Check the power cord for any signs of wear and replace if damaged.
Troubleshooting Common Issues
If the unit doesn't turn on, check that it's properly plugged in and the outlet is working. If the water pressure seems low, ensure the reservoir is full and the tip is not clogged. Replace the tip if necessary. If water leaks from the unit, check that the reservoir is securely attached.
If you experience discomfort while using the flosser, lower the pressure setting and ensure you are using lukewarm water. If the unit makes unusual noises, it may need cleaning or there may be air in the line—run the unit with the tip submerged in water for a few seconds to prime it.
- Always unplug the unit before cleaning or performing any maintenance.
- If problems persist, contact Waterpik customer support for assistance.
The Black Aquarius Water Flosser (WP-662) is a reliable and effective tool for improving your oral hygiene. By following this guide, you'll be able to use it safely and efficiently, ensuring a cleaner, healthier smile. For a portable option, consider the Blue Cordless Gem 5100 Water Flosser – Blue (WF-27CD013) or the Cordless 1000 Water Flosser – White (WF-29W011).


