Waterpik Aquarius Water Flosser WP-660 Reviews

You might think of a water flosser as a nice little luxury, something akin to an aromatherapy diffuser or a scented candle: a nice-to-have, but not a necessity. Then you’re wrong.

Believe it or not, it turns out that using a water flosser—which uses a thin jet of water instead of string to clean between your teeth and below your gum line—might just reduce your chance of getting heart disease. According to a report by Harvard Medical School, that’s because plaque and bacteria in your mouth can travel to your heart.

The Waterpik Aquarius water flosser professional wp-660 has numerous features that might just change your mind about teeth-flossing. Perhaps you’ve tried out a water flosser but didn’t feel like it got the job done because the water pressure was too low or not targeted enough. Or maybe it had too many features and customizations that you felt overwhelmed and didn’t know where to start. 

The Waterpik Aquarius WP-660 sits nicely on your countertop with an extending hose for some extra range of motion. It also features an assortment of flossing tips built to handle special dental implants, crowns, or braces. If you’re looking for a simple flooser to toss in with your travel luggage, this may not be the best choice for you, but if you want a smart, powerful water flosser that is capable of handling any dental work you’ve had done yet, doesn’t consume too much counter space, look no further than this model. 

waterpik aquarius water flosser wp-660 reviews

What is the Waterpik Aquarius Water Flosser?

The Waterpik Aquarius comes as a new “designer line” created by Waterpik that is compact in size and has a really sleek look. This model comes with a big water reservoir, provides a range adjustable water pressure (10 pressure settings), along with some unique features that aren’t present in other Waterpik models, including Massage Mode and Timer with Pacer that are not the most important but are nice to have though.

Who is it for?

The Waterpik Aquarius makes the best water flosser for individuals with specific flossing needs that the basic tips from other models can’t meet, so if you want to test out various tips and water pressure levels to find an oral hygiene routine that works best for you, this might be worth the investment. Having said that, if you don’t think you’ll need the other flossing tips, you will be better off with a simpler model that comes at a lower price. 

What Makes the Waterpik Aquarius Water Flosser WP-660 Stand Out?

1. Massage and Flossing Functions

The main standout feature of this water flosser and other higher-priced Waterpik models is the massage mode, featuring pulsating jets of water. With the Waterpik Aquarius, you can easily switch between flossing and massage modes without turning off the unit each time. The manufacturer recommends trying the massage function on your gums after you finish flossing to yield the best results. Follow the advice and your mouth will feel extra clean when you’re done. 

2. 10 Water Pressure Settings

The large dial on the front of this water flosser allows you to adjust the strength and pressure of the stream from 1 to 10. This translates to approximately 10 to 100 PSI. In this case, the PSI (or “pounds per square inch”) measures how much force is being applied to the water coming out of the flosser. To put this into perspective, the water pressure in your shower is likely around 45 to 80, making the fact that it can go up to 100 pretty impressive.

You can easily adjust the pressure as you floss, so you always feel comfortable. 

3. Large Reservoir

The water reservoir can hold 22 ounces, or 651 milliliters, of water or mouthwash at a time. When running at a moderate pressure, this allows for about 90 seconds of runtime. The manufacturer recommends flossing your teeth for about 60 seconds, so you won’t need to stop and refill during each use, doing so will also give you enough time to spare.

Overall, the bigger reservoir can be a big time saver compared to other flossers. Say the portable Waterpik Cordless Express model can only hold 5 ounces of water or about 30 seconds runtime—meaning that for a full flossing session, you would need to stop and refill at least once or twice.

Pros & Cons

Pros

  • Excellent cleaning performance
  • Choose between 10 different pressure settings
  • Includes various tips to target specific needs
  • Rotating nozzle for easier control
  • Stylish design and compact footprint
  • Approved by the American Dental Association (ADA)

Cons

  • Requires power to function
  • Compact but does consume a bit of countertop space
  • Water flossing can be messy and needs to be lent over a sink

How to Use the Waterpik WP-660 Water Flosser?

Step 1 – Fill the water tank/reservoir with lukewarm water or mouthwash.

Step 2 – Fit the appropriate nozzle to the handle of the flosser. Ensure that it has clipped into place.

Step 3 – Adjust the pressure dial on the unit to your desired pressure level. If it’s your first time using a water flosser, start with a lower setting and slowly work your way up to higher pressure as you become more comfortable. 

Step 4 – Press the power button to switch the unit on.

Step 5 – Lean over the sink and place the tip of the flosser into your mouth. Close the lips enough to prevent splashing while still allowing water to flow from the mouth into the sink. 

Step 6 – Slide the switch on the handle from off to on, and the water will start to flow.

Step 7 – Aim water at your gum line at a 90 degree angle. Follow the gumline and pause briefly from tooth to tooth.

Step 8 – When complete, slide the button to “off” and then press the power button to turn it off.

Price

The Waterpik wp-660 best price is $79.97 (as of 25/4/2023). The additional flossing tips, dual on/off switches, and water pulsing massage function are some of the reasons justifying its higher price.

Our Final Verdict

The Waterpik Aquarius wp-660 water flosser stands in the upper middle of Waterpik’s line of countertop water flossers in terms of price and available features. It offers an array of flossing tips (with minimal storage options) and a good amount of water pressure compared to handheld models. The pulsating water massage and dual on/off buttons are a nice bonus too. However, its lack of portability and higher price may leave you wanting a simpler and cheaper option or wishing you had splurged on a higher-end model with more extra perks and bonus features.

All in all, the Waterpik Aquarius wp-660 is a “middle-of-the-pack” model, and will suit most individuals’ needs.

Celine So

Celine So

Be mindful of your words as they are impactful, which also explains why I am so fond of writing.

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