Waterpik Ultra Professional vs Aquarius

What the two have in common

Both are countertop units with a pump in the base, a removable reservoir on top, a hose to the handle and a pressure control. Both take Waterpik's standard tips, so replacement tips are easy to find. Both need a nearby socket; in UK bathrooms, check the plug type and safety rules before placing one near water.

Both are used the same way: start on a low setting, lean over the sink, trace the gumline and pause between teeth. Our guide on how to use a water flosser covers the technique.

Key differences

The table shows the widely documented differences. Tip counts and accessories vary by pack, so check the listing for the exact version.

Modes and timer

The Aquarius adds a massage mode that changes the pulse pattern. Waterpik describes it as a way to stimulate the gums. Treat it as a comfort feature rather than a health benefit.

The Aquarius also has a timer with a pacer that signals when to move to another part of the mouth. That helps you cover the whole mouth evenly in about a minute. If you are happy timing yourself, the Ultra Professional's simpler controls are not a drawback.

Reservoir and tips

Both reservoirs are large enough for a full session on most settings, which is the main advantage of a countertop flosser over a cordless one. Check the listing for the exact capacity of the version you are looking at.

Tip packs vary. Some boxes include orthodontic, plaque seeker and pocket tips, while others have only classic jet tips. If you have braces or implants, make sure the right tip is included or budget for a pack. Replace tips as Waterpik advises, usually every few months.

Which one to choose

Start with how you will use it. If you floss once a day at home, want a reliable countertop unit and do not need extras, the Ultra Professional is a sensible, simple choice. If you like the idea of a timer guiding you around the mouth, or want the option of a gentler pulse pattern, the Aquarius gives you those features.

Space is the same for both: each needs room by the sink and a socket within reach of the cord. If space is tight or you travel a lot, a cordless flosser may suit you better, at the cost of a smaller tank. Our Waterpik vs Philips Sonicare Power Flosser guide compares countertop and cordless formats.

Looking after either model

Our guide on how to clean and descale a water flosser covers each step. If the pump stops working, see Waterpik not pumping water. For a brush to pair with either flosser, see our premium electric toothbrush guide.

• Empty the reservoir after each use and leave it to air dry.
• Descale regularly in hard water areas, following the manual's method.
• Wipe the base and hose, and run clean water through after descaling.
• Replace tips on schedule, and sooner if they crack or clog.

Note:Keep mains-powered flossers away from baths and showers and follow the manual's safety instructions for bathroom use.

Frequently asked questions

Is the Aquarius worth the extra over the Ultra Professional? Only if you will use the massage mode and timer. Otherwise the Ultra Professional does the core job.

Do they use the same tips? Both take Waterpik's standard countertop tips. Check the compatibility list on Waterpik's site for any special tip.

Can I use mouthwash in the reservoir? Check the manual. Waterpik gives guidance on what can go in the reservoir and how to rinse afterwards.

Are they safe for sensitive gums? Start on the lowest setting. If your gums are sore or bleed often, see a dentist before increasing pressure.