Side by side

Hoover SmartWash vs BISSELL Big Green, Compared: Big Green reduces refills on longer sessions while SmartWash carries lighter

Quick verdict

Go with SmartWash if you want easier dosing and less weight to carry. Big Green is better for longer sessions, when the bigger tank is worth more to you than low weight.

Before you buy

Why, and what it costs you

Put tank capacities in the same units

Clean liquid capacity is 1 US gallon for SmartWash Pet Complete and 1.75 for Big Green Professional Carpet Cleaner. That is a gap of 96 fluid ounces, before recovery-tank limits come into play.

Where this comes from

128 US fluid ounces =1 US gallon. The capacities on record are 128 and 224 fl oz. Converting puts tank volume on one scale and says nothing about cleaning coverage.

The catch

Hoover SmartWash Pet Complete

Empty, it weighs about 20.5 pounds, so it's tougher to carry than PowerDash.

The catch

BISSELL Big Green Professional Carpet Cleaner

It's a heavy, commercial-style machine to haul around, and it claims a lot of closet space.

Hoover SmartWash Pet Complete

Hoover SmartWash Pet Complete

Why pick it
  • Skip the formula measuring on every fill
  • Move the machine from floor to floor
The catch
Empty, it weighs about 20.5 pounds, so it's tougher to carry than PowerDash.
See price & reviews on Amazon
BISSELL Big Green Professional Carpet Cleaner

BISSELL Big Green Professional Carpet Cleaner

Why pick it
  • Do several rooms in one session
  • Put a larger solution tank first
The catch
It's a heavy, commercial-style machine to haul around, and it claims a lot of closet space.
See price & reviews on Amazon

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Comparison updated , Product data updated , Amazon.com / United States

What this page compares

SmartWash is the pick for easier dosing and a lighter machine to carry. Big Green fits longer cleaning sessions, where a larger tank counts for more than weight.

Hoover cuts down the handling work

Which one fits

Pick the situations that sound like you

  • Skip the formula measuring on every fill

    The solution is mixed automatically on SmartWash, and the machine switches from application to extraction depending on which way you move. At about 20.5 pounds empty, it is also far easier to lift than Big Green.

    Hoover SmartWash Pet Complete
    Better fit
    BISSELL Big Green Professional Carpet Cleaner
    Not suitable
  • Do several rooms in one session

    The 75% advantage comes from its 1.75-gallon tank versus the one-gallon tank on the Hoover. What you gain is liquid capacity. Nothing promises 75% more cleaned area.

    Hoover SmartWash Pet Complete
    Depends
    BISSELL Big Green Professional Carpet Cleaner
    Better fit
  • Look at the whole setup

    Empty, Big Green already weighs 42 pounds. If the manual allows it, move the machine to the cleaning area before adding water, and don't carry it filled unless you have to.

    Hoover SmartWash Pet Complete
    Depends
    BISSELL Big Green Professional Carpet Cleaner
    Depends
  • Before filling, the large-tank machine weighs more than double

    Big Green comes in at 42 pounds, SmartWash at 20.5. Big Green brings 0.75 gallon of extra clean capacity along with 21.5 pounds of additional empty weight.

    Hoover SmartWash Pet Complete
    Depends
    BISSELL Big Green Professional Carpet Cleaner
    Depends

In practice

Differences you will notice

Put tank capacities in the same units

Clean liquid capacity is 1 US gallon for SmartWash Pet Complete and 1.75 for Big Green Professional Carpet Cleaner. That is a gap of 96 fluid ounces, before recovery-tank limits come into play.

How we worked this out

128 US fluid ounces =1 US gallon. The capacities on record are 128 and 224 fl oz. Converting puts tank volume on one scale and says nothing about cleaning coverage.

Factor in the water before you lift

Filling the clean tank puts roughly 8.34 pounds of water weight on SmartWash Pet Complete and 14.59 pounds on Big Green Professional Carpet Cleaner. Follow the manual when you move and fill them.

How we worked this out

Approximate water mass = clean capacity in US gallons ×8.34 lb/gal. Inputs 128/128 and 224/128 gallons. The real total shifts with formula concentration, leftover dirty water and tools.

Before filling, the large-tank machine weighs more than double

Big Green comes in at 42 pounds, SmartWash at 20.5. Big Green brings 0.75 gallon of extra clean capacity along with 21.5 pounds of additional empty weight.

How we worked this out

1.75 - 1 = 0.75 US gallon. 42 - 20.5 = 21.5 lb. 42 / 20.5 = 2.05.

Option A
Hoover SmartWash Pet Complete

Hoover, FH53000

SmartWash Pet Complete

On the forward pass this automatic upright washes, on the pullback it dries, and it meters the solution too.

Best for
Whole rooms, when you want a simple automatic routine

Facts we checked

  • On the forward stroke SmartWash applies solution, and on the pullback it switches to extraction.
  • Cleaning solution and water are mixed automatically by the FH53000.
  • Hoover's listing gives a one-gallon clean tank, 12-inch path, 22-foot cord and eight-foot hose.
Option B
BISSELL Big Green Professional Carpet Cleaner

BISSELL, 86T3

Big Green Professional Carpet Cleaner

Large tanks, a long cord and a nine-foot attachment hose come on this heavy upright extractor.

Best for
Big carpeted homes where deep cleaning happens often

Facts we checked

  • BISSELL's listing shows a 1.75-gallon tank and a 10.5-inch cleaning path.
  • A 25-foot cord and a nine-foot hose come with the machine.
  • BISSELL's listing puts the empty machine at 42 pounds and gives a five-year warranty.
  • An eight-row DirtLifter brush is on the 86T3, which cleans on forward and backward passes.

Spec by spec

Where they really differ

Where Hoover SmartWash Pet Complete and BISSELL Big Green Professional Carpet Cleaner differ
SpecHoover SmartWash Pet CompleteBISSELL Big Green Professional Carpet CleanerIn practice
Machine typeUprightUprightUsing a spot cleaner in place of a whole-room upright is not efficient.
Nominal clean tank128 US fl oz224 US fl ozCapacity does not promise area covered.
Empty weight20.5 lb42 lbWeight goes up with water, tools and solution.
Hose8 ft9 ftLook at exactly what the bundle contains, and at any model documentation that disagrees.
Power cord22 ft25 ftUsable reach depends on outlet position.
Cleaning systemAutomatic dosing and movement-based wet/dry operationEight-row brush, forward and backward cleaningA feature list cannot name a winner without a matched cleaning test.

Trade-offs

What each pick costs you

With Hoover SmartWash Pet Complete

  • Because dosing is automatic, you have less say over how concentrated the formula is.

With BISSELL Big Green Professional Carpet Cleaner

  • The wide commercial-style head is slow to turn around in a small furnished room.

Decision guide

How to decide

SmartWash is for easier dosing and a lighter machine to carry. Longer cleaning sessions, where tank size outweighs weight, favor Big Green.

01

Hoover cuts down the handling work

The solution is mixed automatically on SmartWash, and the machine switches from application to extraction depending on which way you move. At about 20.5 pounds empty, it is also far easier to lift than Big Green.

02

Big Green goes longer between refills

The 75% advantage comes from its 1.75-gallon tank versus the one-gallon tank on the Hoover. What you gain is liquid capacity. Nothing promises 75% more cleaned area.

03

Carrying weight changes once the tank is full

Empty, Big Green already weighs 42 pounds. If the manual allows it, move the machine to the cleaning area before adding water, and don't carry it filled unless you have to.

Check these before you buy

  • Before you order, check the exact model and the package contents on Amazon.
  • Big Green weighs 42 pounds empty, so wait to add water until it is in the cleaning area, provided the manual allows it. Skip carrying it filled whenever you can.

What this page can’t tell you

  • The conclusions here rest on published specifications and the calculations shown. No hands-on performance test was done.

By the numbers

What the data shows

What we found across the carpet cleaners we compare, plus the checked facts behind each finding.

How many fit

This guide keeps all 22 models in play. The pick rests on the facts and trade-offs on this page.

22 models fit, out of 22 checked
Show the facts and the math
Models in the comparison
22 models
Sources
3 covering these models
Product data updated

How we countedNo needs are preselected here. Open the matcher and add the ones that apply to your home, room or setup.

The facts and sources behind each product in this recommendation
ProductNeeds it meetsFacts we checkedSources
Hoover SmartWash Pet CompleteNone of these needs is a documented match
  • On the forward stroke SmartWash applies solution, and on the pullback it switches to extraction.
  • Cleaning solution and water are mixed automatically by the FH53000.
  • Hoover's listing gives a one-gallon clean tank, 12-inch path, 22-foot cord and eight-foot hose.
BISSELL Big Green Professional Carpet CleanerNone of these needs is a documented match
  • BISSELL's listing shows a 1.75-gallon tank and a 10.5-inch cleaning path.
  • A 25-foot cord and a nine-foot hose come with the machine.
  • BISSELL's listing puts the empty machine at 42 pounds and gives a five-year warranty.
  • Big Green Professional Carpet Cleaner 86T3: BISSELL (maker specs)
  • Big Green 86T3 specifications: BISSELL (maker specs)

Ready to buy

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