Skilled’s Ranking
Execs
- Light-weight, maneuverable, and simple to manage
- Sucks up 90 p.c of the soiled water, so the ground dries with out leaving a haze
- Competitively priced
Cons
- Quick run time on Excessive mode, and you’ll’t swap out a drained battery for a contemporary one
- Battery requires 3-6 hours to recharge
- Eureka might void your guarantee for utilizing one other maker’s specialty cleansing agent
- Lacks a tough brush head choice for scrubbing ground-in dust
Our Verdict
Eureka! The New400 Moist/Dry Vacuum eliminates the mess and aggravation of washing hard-surface flooring, leaving them clear sufficient for bunk inspection.
If the New400 isn’t out there in your area, take a look at our evaluate of the same Tineco Flooring One S3.
How did utilizing the Eureka New400 collection Moist/Dry Vacuum and Flooring Washer first make me really feel?
Disgusted.
I’ve typically been a practitioner of the “10-second rule,” which glibly claims that meals dropped on the ground is fit for human consumption if it’s picked up inside 10 seconds.
However after a primary swipe throughout my “fairly clear” kitchen ground with Eureka’s new moist/dry vac, and an inspection of what it scrubbed up and extracted to its holding tank, I swore I’d be floor-dining no extra.
Light-weight and simple to maneuver, you’ll be shouting “Eureka!” operating this 8.7-pound, battery-powered machine around the room
Poured into a glass, the recovered liquid appeared like a foamy chocolate shake, with random bits of this and that floating round. Yuck. And even with periodic repeat washes, spaced out each 4 or 5 days, I discovered myself dumping out lighter-muddied restoration water from the holding tank. Perhaps these fastidious people who lose their footwear on the entrance door are on to one thing.
Cleansing components from Eureka and OMO/Roborock are specifically formulated to not clog up the works of moist/dry upright and robotic vacs. (The glass within the center holds the contents of the dirty-water tank after a cleansing job.)
Jonathan Takiff / Foundry
The New400 is one in every of a rising breed of what I’d name “specialty” or “restricted use” vacuum cleaners. It appears like a typical upright vac, however this machine is ineffective on carpets and might’t even dry-clear naked flooring. It might be extra precisely described as a solution-spraying, brush-scrubbing ground washer enhanced with vacuum extraction of the moisture; effectively, the answer is elective – you may additionally use plain water.
An upward-opening, suction-powered slit behind the comb takes in 90 p.c of the soiled water and, on the identical time, collects no matter different grit and goop was sitting in its path. The remaining 10 p.c of wetness left on the ground dries in only a minute or two, and with out leaving a haze behind. So, that’s what’s meant right here by a “moist/dry vac.”
Design & Construct
The fast-release 600ml (20.3-ounce) capability clear tank on the high of the physique will get full of heat water and, in the event you need, a capful or two of particular detergent created particularly for moist/dry vacs. The Eureka-branded Clear+Refresh “sterilizing liquid” provided with the vac provides a pleasant scent (it’s billed as ”appropriate for pet households”) and gives a tad extra cleansing energy than water alone.

The Eureka New400’s clear water tank is straightforward to pop out and in of the vacuum.
Jonathan Takiff / Foundry
I additionally dared to run by a tank of water infused with a pair capfuls of OMO Roborock Multisurface Flooring Cleansing answer, developed for wet-vac use by Unilever. It lacked a coverup scent however appeared barely more proficient at loosening ground-in dust. I say “dared” as a result of the machine’s working directions warn: “All the time use Eureka cleansing answer in your machine, different cleansing options might harm the machine and void the guarantee.” In a follow-up inquiry, Eureka raised the potential of incompatible cleansing chemical substances “corroding” elements.
For sure you need to by no means use a cleaning soap product not particularly formulated to be used in moist/dry vacs. Nor must you use greater than a capsule or two of the specialty stuff, as that may certainly create extra suds and clog the machine’s works. To minimize considerations, I now run the vac with a smidgeon of additive each different time I take advantage of it, alternating with plain faucet water to flush the system of any agent residue.

Flooring gunk accumulates within the blue foam filter and different elements surrounding the soiled water holding tank.
Jonathan Takiff / Foundry
Positioned under the clean-water tank is a second quick-release tank, barely smaller at 400ml (13.5 ounces), that captures the soiled water the vac sucks again up. I initially scratched my head over the relative tank sizes, fearing “couldn’t a mess-up occur right here?”
However the New400’s 2500mAh lithium-ion battery appears to close down when the meting out high tank is sort of tapped out and the recycling backside compartment is sort of full. And a detection system (using an inside float) blocks the suction port and flashes a warning mild on the deal with when the soiled water rises to its most consumption line.
Efficiency & Options
Light-weight and simple to maneuver, you’ll be shouting “Eureka!” operating this 8.7-pound, battery-powered machine around the room. The torque in its spinning curler, which turns at 600rpm, is ample to propel the machine ahead, nevertheless it doesn’t put up an excessive amount of resistance while you’re tugging backwards and forwards over downside areas to loosen hardened dust. That’s one thing robotic mops are exhausting pressed to do. You possibly can nearly be a passive observer because the Eureka does its factor. The clear water dispersion (distributed throughout the comb head) is computerized, as is the vacuum extraction that follows.

The enterprise finish of the Eureka New400 match simply into the toe-kicks of my kitchen cupboards.
Jonathan Takiff / Foundry
Operations are managed with three buttons – Energy, Mode, and Self Clear – which are stacked on its ergonomically formed deal with. The On/Off change is within the middle, and it has an indicator mild that shifts from blue to purple after which nearly immediately to crimson when the ability is operating low. You’ll get 5 minutes of working time as soon as the color-shifting begins.
Pushing the deal with and vac physique ahead into the complete upright-and-locked place stops the machine, placing it in standby mode. Depart it like that for greater than three minutes and it totally powers down.

Management buttons are readily accessible on the Eureka New400’s ergonomic deal with.
Jonathan Takiff / Foundry
Gear shifting is completed on the handle-topping Low/Excessive Mode button. In low gear, you’ll get upwards of half-hour for touch-up work. I discovered the time ample to swab down a kitchen ground, a pair bogs, the entryway, and some patches of hallway.
However in the event you’re new with this gadget and are tackling a not often washed ground, that fast once-over you first did will simply be the beginning. Give the vac an opportunity to recharge: The method takes upwards of 5 to 6 hours, in response to Eureka’s literature, although the charging mild goes out after three. Now begin cleansing once more, this time with the vac spraying, spinning, and sucking extra aggressively on “Excessive.” Work that pet repeatedly over the worst zones. And be fast about it. When operating on Excessive, the Eureka New400 is just up for about 10 minutes of regular ground pounding. The excellent news is that by no means will get too noisy, whirring at 77.6 dB on Excessive and 73.7 dB on Low, Eureka specifies.


Function-built for usefulness on every kind of sealed flooring, the Eureka New400 vac encompasses a plush materials head that wets and surface-wipes vigorously with out scratching. It did very effectively by a demanding, white tiled rest room and put a brighter shine on my previous polyurethane-coated Southern Pine flooring.
Nonetheless, I want there was another, bristle-brush head that might deal with the deep recesses in my porous, uneven-surfaced ceramic kitchen tiles. Even after a second energy wash, digging out the deepest-embedded dust nonetheless required extracurricular exercise. I acquired down on my fingers and knees to work with a twig bottle of TileGuard Tile and Grout Cleaner and a scrub brush, shortly adopted by a wipe up with a rag, after which one other helpful swipe of the ground with the Eureka. Solely after that did the ground appear to be new.
Cautionary Notice Two: Eureka working directions additionally warn in opposition to utilizing the vac to scrub away “solvents.” That might dissuade you from deploying even an old school do-it-yourself washing answer of vinegar and water instantly on the ground or within the clear water tank.

My rest room ground sparkled like the highest of the Chrysler constructing after a go together with the Eureka New400.
Jonathan Takiff / Foundry
Whereas the Eureka will definitely decide up assorted unfastened detritus – random cereal flakes and cookie crumbs, sprinkles of seasonings, pet hair, and the like – I’d suggest you run a dry vac over your flooring earlier than letting this machine unfastened on them. Save Eureka’s mop-and-vac expertise for extra dramatic liquid spills and for general-purpose ground washing. The maker additionally warns in opposition to sucking up massive clumps of stuff, as that may doubtless clog up the works.
A lot, however not all, of the little stuff the New400 sucks up will wind up within the dirty-water tank, a concoction that must be filtered by a sieve in the event you’re planning on pouring it down the drain. Different grit clings to the highest and sides of the soiled water tank, to a sponge filter above the identical tank, to the plastic, and to the rubber-lipped body across the curler brush. And also you’ll discover pet hair wrapped across the brush head, begging to be pulled off with a provided instrument earlier than it locks up the operations. In the event you’ve pre-cleaned the ground with a dry vac, the New400 will likely be happier and also you’ll discover it simpler to wash in addition.

The Eureka New400’s tanks, brush head and different elements are simply disassembled for laundry.
Jonathan Takiff / Foundry
A pair seconds of whirred-up cleansing happens every time you hit the ability off button. Once you’re completed utilizing the New400 for the day, urgent the Self Cleansing button initiates a brief (one minute) however fairly noisy (80 dB) course of that flushes most of gathered gunk out of the tubing and into the soiled water tank.
Self Cleansing’s even greater accomplishment is washing its spinning brush head. As some water flies off within the course of, you need to solely faucet the SC button when each tanks are in place and the vac is seated on its rimmed, exhausting plastic base, which helps with the comb scrubbing and comprises any spillage. This self-cleaning course of did such a superb job that I not often felt compelled to yank out the comb head and hand wash it underneath the faucet. But when mopping-up pungent or sticky stuff, that’s a should.
My foremost concern right here is with battery administration. In the event you don’t shut the unit off instantly after its indicator mild turns purple to report low energy, you’ll discover it missing sufficient energy in reserve to run the self-cleaning operation. Including insult to harm, the method can’t be carried out when the vac is plugged in for recharging. Notice to the product design group: I want the vac additionally issued an audible alert when operating low on energy, as its coloured warning mild is straightforward to miss.
Why you want three vacuums

My Southern Pine flooring sparkled after the Eureka New400 was completed with them.
Jonathan Takiff / Foundry
Again within the days of heavy and clunky vacs, a vacuum-cleaner restore man advised I ought to have a separate vac for every ground of my row home, merely to keep away from the hesitation and aggravation of lugging a machine up and down stairs. On this age of light-weight, slim cordless fashions, I’ve come to an enhanced rationale for 3 are higher than one.
My go-to machine for space rugs is the Dyson V8 Absolute. It doesn’t beat the fibers as exhausting as its newer, higher-numbered siblings, however that’s a superb factor for rug longevity. For hard-surface flooring, I like the Dyson V15 Detect with its fluffy head put in. It throws a inexperienced laser on the ground, highlighting a noxious high layer of mud particles you’d in any other case by no means discover. This inexperienced illumination can also be discovered on the V12 Detect Slim and Gen5detect.
Now I’m thrilled to welcome the Eureka New400 moist/dry vac into the happy-helpers fold for laundry my naked flooring.
Must you purchase a Eureka New400 Moist/Dry Vacuum?
With its swiveling, comparatively low-profile head, the Eureka NEW400 will not be a lot more durable to push round than a Swiffer, and it’s 50 instances extra nice to make use of for ground washing than a mop and bucket. Boasting a ton of muscle energy, it cleans – and cleans up after itself – like no person’s enterprise.
Now if it had a swappable battery and bristle-brush head, I’d be completely in awe.
This evaluate was first revealed on TechHive, our sibling publication.