Can You Use Mouthwash in a Waterpik Water Flosser?
By Waterpik™ Oral Health - Water Flossers, Electric Toothbrushes | Published: 2026-10-18
Category: Product Reviews
Yes, you can add mouthwash to your Waterpik water flosser. Learn the correct ratio, which models work best, and tips to avoid damaging your device.
Quick Answer
Yes, you can safely use mouthwash in most Waterpik water flossers, including the Aquarius, as long as you dilute it with warm water and rinse the reservoir afterward.
Why Dilute Mouthwash in a Water Flosser?
Undiluted mouthwash is too thick and can clog the water flosser nozzle or damage internal seals over time. A simple 1:1 ratio of mouthwash to warm water keeps the device running smoothly while still delivering the antimicrobial benefits of your rinse.
Using mouthwash in your water flosser can help reach areas that brushing and rinsing alone might miss, especially around gumlines and between teeth. Just remember to flush the reservoir with clean water after each use to prevent residue buildup.
Which Waterpik Models Work Best with Mouthwash?
All countertop Waterpik models, such as the Aquarius, are designed to handle diluted mouthwash. The Aquarius features a large reservoir and multiple pressure settings, making it easy to adjust the flow for a comfortable experience.
Cordless models can also be used with mouthwash, but because their reservoirs are smaller, you may need to refill more often. Always check your model's manual for specific recommendations.
Frequently Asked Questions
- What is the correct mouthwash-to-water ratio?
- Use a 1:1 ratio of mouthwash to warm water. For example, fill the reservoir halfway with mouthwash and top it off with warm water. This prevents clogging and protects internal parts.
- Can I use any type of mouthwash?
- Stick to standard, non‑alcohol mouthwashes. Avoid thick, gel‑based rinses or those containing particles, as they can clog the nozzle. Clear, alcohol‑free mouthwashes are the safest choice.
- How do I clean the reservoir after using mouthwash?
- After each use, empty any remaining liquid, rinse the reservoir with warm water, and run clean water through the flosser for a few seconds. This prevents residue from hardening and blocking the nozzle. For weekly deep cleaning, fill the reservoir with a mixture of white vinegar and water, run it through, then rinse thoroughly.
- Will using mouthwash void my warranty?
- No, using diluted mouthwash does not void the warranty. However, damage caused by undiluted mouthwash or failure to clean the device afterward may not be covered. Always follow the cleaning instructions in your manual.
Product Facts
- Black Aquarius Water Flosser – Black (WP-662): The Aquarius water flosser is the most advanced water flosser ever. Clinically proven up to 50% more effective for improving gum health vs. string floss. Using diluted mouthwash in the Aquarius can enhance its gum health benefits by combining mechanical flushing with an antimicrobial rinse.
Black Aquarius Water Flosser – Black (WP-662)
