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Waterpik Aquarius Water Flosser Review

By: Kelly Burgess on September 08, 2017

Bottom Line

The Waterpik Aquarius Water Flosser allows users to get a better clean between teeth than with string floss, and is great for cleaning around braces. With 10 pressure settings, the Ultra Water Flosser can be customized for the most sensitive of gums.


  • Helps remove stains
  • More effective than string floss
  • Gets under the gum line
  • Customizable settings for comfort


  • Cost of tips adds up
  • On/off switch can be hard to operate
Our Analysis
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Breaking it down


Cleans the hard to reach spots. The Waterpik Aquarius Water Flosser can clean hard-to-reach spots at the back of the mouth, around braces or just in between teeth, and cleans more effectively than standard string floss. Owners say the Waterpik is much more effective at removing stains left by coffee or wine than a regular toothbrush. We read quite a few reviews from those who say that using this Waterpik daily has "toughened" up their gums and has reduced bleeding and sensitivity. The variety of settings gets praise, from a gentle low setting up to those who love the stronger 10 setting.

Ease of use

A finicky on/off switch. The one main consistent complaint we saw with the Waterpik Aquarius Water Flosser is that the on/off switch can be difficult to move from one setting to another. Most don't point this out, but we read enough similar statements to assume this is a definite issue for some. Otherwise, the Aquarius is simple to plug in, fill up and go, but with 10 different pressure settings there may be a learning curve if you haven't used an electric flosser before. Some users recommend starting on pressure setting one or two until you're used to the machine, otherwise it might feel like needles on sensitive gums. For the inexperienced, the Waterpik can get messy, so, again, there is a learning curve to master to keep water from shooting everywhere. Still, once they get the hang of it -- and figure out their ideal settings -- most say that it's super simple to use.


Multiple settings and large tank. The most notable feature of the Waterpik Aquarius Water Flosser is that it has 10 different speeds for users to choose from, depending on gum sensitivity or how much pressure you need for removing food from between teeth. The tank on the back can hold either water or mouthwash, and it holds enough liquid for over 90 seconds of use. There is a one minute timer with a 30-second pacer to remind you to move to a different quadrant.

Cost of ownership

Reasonable start-up costs, tips can get pricey. The Waterpik Aquarius Water Flosser comes with seven tips, including three classic tips and four special-feature tips, and the each tip lasts around six months. Replacement tips cost about $10 for a set of two, and given the sheer number of tips that are needed to use all the cleaning options, that can start to add up, owners say. Still, most find it worth the ongoing costs to maximize their dental hygiene.

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