Home>Vacuums>Tineco FLOOR ONE Station S9 Scientist Pro Wet Dry Vacuum Review
Last Updated: September 9, 2026
9.1/10
Tineco FLOOR ONE Station S9 Scientist Pro Wet Dry Vacuum Review
IS THE TINECO FLOOR ONE STATION S9 SCIENTIST PRO WET DRY VACUUM WORTH IT?
✓ Why Dad Likes It
Dock has its own water tank and solution tank and refills the mop with hot water for you
5-minute flash dry — you're not leaving a damp roller sitting around
Sprays hot water right onto stains for stubborn spots
Auto mode ramps suction and water up when it senses the floor's dirty
Looks great — a machine you don't mind leaving out in the kitchen
− What To Know
Flagship pricing at $1,200 MSRP — a good buy price would be under $800 on sale
You have to press the hot-water refill button yourself, or you're mopping with room-temp water
The 5-minute flash dry is noisy; the quiet dry option takes about 40 minutes
BOTTOM LINE: Is the Tineco FLOOR ONE Station S9 Scientist Pro Wet Dry Vacuum Just a Dad Approved?
It IS Just a Dad Approved. For a big house with kids or pets making messes, this earned the Just A Dad sticker. The dock refilling the mop with hot water on its own is the standout feature — I'm not filling little tanks by hand anymore — and the 5-minute flash dry means it's ready to put away fast. It's flagship priced at $1,200, so wait for a sale and aim for under $800, but if you want a machine that handles the hot water for you, this is a top pick.
Watch the Real-World Testing
From My YouTube Channel
More Videos On This Robot
🏆3-Month Real World Test Score9.1/10
General Cleaning Performance
9.2/10
Stain Cleaning Performance
9/10
Long Hair Pickup
8.7/10
Battery & Run Time
9.5/10
Ease of Use & Features
9.3/10
Score Summary9.1
Real World Testing Results
🐾
HAIR & PET TEST
Long hairs got pulled into the roller, but a comb strips them off so cleanup isn't a tangled mess.
💧
CLEANING TEST
Wiped out the big test mess. Auto mode senses lingering dirt and ramps up suction and water.
⚠️
EASE OF USE TEST
Self-driving wheels make it easy to push. Display walks you through hot water refill, drying, and self-clean.
⚙️
MAINTENANCE REALITY TEST
Dock self-cleans the roller with hot water, then flash-dries in 5 minutes. Replace the roller every 4–5 months.
Product Specifications
Full Technical Breakdown
About
Model
Tineco FLOOR ONE Station S9 Scientist Pro Wet Dry Vacuum
Price
Premium
Power
Cordless
Suction
25,000 Pa
Run Time
100 min
Design
Lies flat · Self-driving/power-assist wheels · LED light · Streak-free squeegee up front
Cleaning Modes
Auto · Max · Suction/Dry Only
Self-Clean
Yes — dock self-cleans the roller with heated water
Details
Edge Clean
Both sides
Sensors / Display
Dirt detect · Onboard screen · LED status light
Hot-Air Dry
Yes
Hot-Water Wash
Yes
Parts / Attachments
Spare mop roller, spare filter, cleaning solution, long cleaning brush for the suction tube
Who Is It For?
Buyer Fit
Buy It If
You want a wet/dry mop that mixes and heats its own water for you
You've got a big house, kids, or pets and want fast turnaround between cleans
You want hot water on hand for stains without filling a kettle
You want a machine that looks and feels like a flagship
Skip It If
You're on a tight budget — this is a $1,200 machine
You don't want to remember to hit the hot-water refill button before every clean
The noise of a 5-minute flash dry would bother you and you don't want to wait ~40 minutes for quiet dry
Top Alternatives
Other Robots To Consider
Tineco FLOOR ONE Stretch S6 Wet Dry Vacuum Cleaner Review
This is the feature that sets it apart. Before you start cleaning, you press the hot-water refill button on the dock. It pulls whatever water is sitting in the mop's clean tank back into the dock's main tank, runs it through a heater, and fills the mop back up with hot water — all in under a minute and a half. Skip that step and you're mopping with room-temperature water, so it's worth building into the routine.
Cleaning Performance
Auto Mode and the Big Mess Test
In Auto mode, the mop cleaned up the big test mess with no second pass needed — general cleaning scored a 9.2 and stain cleaning a 9.0. There's also a Max mode and a Suction/Dry Only mode for when you just need to vacuum without wetting the floor.
Hot Water on Stains
There's a separate button that sprays hot water straight out onto a spot — handy for a stuck-on stain without switching modes. It only comes out hot if you've already run the dock's hot-water refill; otherwise it's room temperature.
Long Hair Pickup
Long Hair Pickup scored an 8.7. There's a comb built into the roller housing that strips hair off as it spins, so it doesn't turn into a wrapped mess by the time you pull the roller for cleaning.
Self-Cleaning and Drying
Dock it when you're done and it runs a self-clean cycle — same trick as the refill, it heats water and washes the roller with it. Then it moves into drying: a 5-minute flash dry that's noisy but fast, or a quieter cycle that Tineco's own voice prompt puts at about 40 minutes. If the flash dry would bother you at night, the quiet option is there, it just takes a lot longer.
Ease of Use
The self-driving/power-assist wheels make it easy to push back and forth, and there's a squeegee on the front that drops down every time you pull it backward — a nice touch for shiny or marble floors that show streaks. The onboard display walks you through what's happening at each stage: refilling, self-cleaning, drying. Ease of Use & Features scored a 9.3.
Maintenance Reality
Emptying the dirty tank is simple — there's a handle that helps pop the O-ring loose, which can otherwise stick. Rinse the filter and let it dry; it's reusable but will need replacing eventually. The mop roller itself needs replacing roughly every 4–5 months depending on how often you use it.
Is It Worth It?
At $1,200 MSRP, this is a flagship-tier purchase — a good buy price would be under $800 if you can catch a sale. For a big household with kids or pets making regular messes, the hot-water dock refill and the 5-minute flash dry make this one of the most convenient wet/dry mops I've run. It's a top pick for large homes, families with pets, and parents who want to grab a ready-to-go machine and get moving.
Frequently Asked Questions
Common Buyer Questions
Is the Tineco S9 Science Pro worth buying?+
For a big home with kids or pets, yes — it earned my Just A Dad Approved sticker at 9.2/10. The dock refilling the mop with hot water on its own and the 5-minute flash dry make it one of the most convenient wet/dry mops I've tested. It's pricey at $1,200 MSRP, so aim for a sale under $800.
Does it actually heat the water, or is that just the dock?+
The dock does the heating. Before you clean, you press the hot-water refill button and the dock pulls water out of the mop, heats it, and refills the mop's tank with hot water. The mop itself doesn't have a heating element on board, so if you skip that button you'll be mopping with room-temperature water.
How long does it take to dry after cleaning?+
About 5 minutes on the flash dry setting, which is fast but noisy. There's a quieter option too — Tineco's own voice prompt puts that one at around 40 minutes. Use flash dry if you want it put away quickly, or quiet dry if the noise would bother you.
How much maintenance does it need?+
Rinse the filter after use and let it dry, empty the dirty water tank each time, and plan on replacing the mop roller roughly every 4–5 months. The dock's self-clean cycle handles washing the roller with hot water for you, so day-to-day upkeep is light.
What are the downsides?+
It's expensive — $1,200 MSRP, so you'll want to catch a sale. You also have to remember to hit the hot-water refill button before each clean or you're stuck with room-temp water, and the fast dry cycle is loud for those 5 minutes. None of that changes how well it cleans, but they're worth knowing going in.
About Tom Shelton
Tom Shelton
Tom Shelton is the creator of Just A Dad Approved. He tests robot vacuums, home products, and everyday gear in real homes so shoppers can see what actually works before spending money.
