Main trade-off
BISSELL Little Green Max Pet SmartMix
Its 32 oz clean tank holds eight ounces less than Hoover's.
Head-to-head
BISSELL Little Green Max Pet SmartMix vs Hoover CleanSlate Plus: Max automates rinsing prep, Hoover’s recovery tank limits its larger fill
The short answer
Choose Little Green Max Pet SmartMix for automatic formula dosing and an easy switch to water-only rinsing. Choose CleanSlate Plus for its larger clean tank and included 7-inch WidePath tool. Hoover's smaller recovery tank means clean-water capacity alone is not the whole refill story.
Before you choose
The reasoning and the trade-offs
The tank advantage changes sides
Hoover's clean tank is 25% larger, while BISSELL's dirty tank is about 39% larger. Pick based on the task's filling and recovery pattern rather than selecting the larger clean number alone.
What this is based on
(40 - 32) / 32 = 25%. (32 - 23) / 23 = 39.1%.
Main trade-off
Hoover CleanSlate Plus
It requires the prescribed solution preparation rather than SmartMix dosing.
BISSELL Little Green Max Pet SmartMix
- Choose it for
- Switch from formula cleaning to water-only rinsing
- Use automatic mixing with equal 32 oz clean and dirty tanks
- Main trade-off
- Its 32 oz clean tank holds eight ounces less than Hoover's.
Hoover CleanSlate Plus
- Choose it for
- Start with 40 oz of clean liquid
- Use the wide seven-inch tool and a separate TightSpot attachment
- Main trade-off
- It requires the prescribed solution preparation rather than SmartMix dosing.
About this comparison
Compare Little Green Max Pet SmartMix 38572 and CleanSlate Plus FH14050 for automatic mixing, clean and dirty tank balance, hand tools and rinsing.
Choose Little Green Max Pet SmartMix for automatic formula dosing and an easy switch to water-only rinsing. Choose CleanSlate Plus for its larger clean tank and included 7-inch WidePath tool. Hoover's smaller recovery tank means clean-water capacity alone is not the whole refill story.
Winner by situation
Start with what you need it to do
I want automatic formula dosing
SmartMix meters formula. CleanSlate does not provide this system.
- BISSELL Little Green Max Pet SmartMix
- Good
- Hoover CleanSlate Plus
- Not suitable
I require a clean tank of at least 40 oz
BISSELL holds 32 oz. Hoover holds 40 oz.
- BISSELL Little Green Max Pet SmartMix
- Not suitable
- Hoover CleanSlate Plus
- Good
I require a recovery tank of at least 30 oz
BISSELL lists 32 oz. Hoover lists 23 oz.
- BISSELL Little Green Max Pet SmartMix
- Good
- Hoover CleanSlate Plus
- Not suitable
I need an included seven-inch hand tool
Hoover documents WidePath. The selected BISSELL package does not include that width.
- BISSELL Little Green Max Pet SmartMix
- Not suitable
- Hoover CleanSlate Plus
- Good
I need to wet-clean fabric marked dry-clean only
Neither purchase overrides the fabric's cleaning instructions.
- BISSELL Little Green Max Pet SmartMix
- Not suitable
- Hoover CleanSlate Plus
- Not suitable
What matters in practice
The differences that matter
The tank advantage changes sides
Hoover's clean tank is 25% larger, while BISSELL's dirty tank is about 39% larger. Pick based on the task's filling and recovery pattern rather than selecting the larger clean number alone.
How we reached this conclusion
(40 - 32) / 32 = 25%. (32 - 23) / 23 = 39.1%.
Hoover can reach a recovery stop before using a full clean tank
Its listed dirty capacity is only 57.5% of clean capacity. Recovery rates vary and not all sprayed water returns, so this is a warning to check the tank rather than a promised stop count.
How we reached this conclusion
23 / 40 × 100 = 57.5%. BISSELL's 32 / 32 = 100%. Liquid recovery is not assumed to be complete.
Frequent wash-and-rinse jobs favor a mode switch
SmartMix's water-only setting avoids the specific task of emptying a premixed solution supply just to rinse. That is a workflow advantage without a claim of improved stain removal.
How we reached this conclusion
BISSELL documents Max Clean and water-only Rinse modes. Hoover's platform uses a filled solution tank and a separate hose-rinse accessory.
Choice A
BISSELL, 38572
Little Green Max Pet SmartMix
A light portable that meters formula automatically and includes a self-cleaning stain tool.
- Best matched use
- Frequent small pet messes with less measuring and rinsing
Checked facts
- Formula workflow: SmartMix automatically meters formula
- Water-only rinse: Dedicated Rinse Mode
- Clean-tank capacity: 32 oz
- Dirty-tank capacity: 32 oz
Choice B
Hoover, FH14050
CleanSlate Plus
A portable spot cleaner with a seven-inch wide tool and a narrow crevice tool.
- Best matched use
- Stairs, sofas and vehicle seats with mixed-size spots
Checked facts
- Formula workflow: Prepare solution in the clean tank as directed
- Water-only rinse: Prepare the clean tank with water for a rinse
- Clean-tank capacity: 40 oz
- Dirty-tank capacity: 23 oz
Meaningful differences
What changes the fit
| What changes | BISSELL Little Green Max Pet SmartMix | Hoover CleanSlate Plus | Why it matters |
|---|---|---|---|
| Formula workflow | SmartMix automatically meters formula | Prepare solution in the clean tank as directed | BISSELL reduces the measuring step in repeat cleanups. |
| Water-only rinse | Dedicated Rinse Mode | Prepare the clean tank with water for a rinse | BISSELL changes modes without replacing a premixed tank's contents. |
| Clean-tank capacity | 32 oz | 40 oz | Hoover holds eight ounces more clean liquid. |
| Dirty-tank capacity | 32 oz | 23 oz | BISSELL has nine ounces more listed recovery capacity. |
| Hand-tool emphasis | Self-Cleaning Tough Stain Tool and pet-hair tool | 7-inch WidePath, TightSpot and hose-rinse tool | BISSELL emphasizes tool flushing. Hoover includes a broad hand tool and narrow access tool. |
What you give up
Every choice has a cost
If you choose BISSELL Little Green Max Pet SmartMix
- The reviewed package does not document Hoover's seven-inch WidePath tool.
If you choose Hoover CleanSlate Plus
- Its 23 oz recovery tank is smaller than both its clean tank and BISSELL's dirty tank.
Recommendation switch
The decision flips if...
Automatic dosing and immediate water-only mode are essential
Choose BISSELL Little Green Max Pet SmartMix. SmartMix supplies both.
I need an included seven-inch tool and 40 oz clean tank
Choose Hoover CleanSlate Plus. The selected CleanSlate setup supplies both.
I need a 40 oz clean tank and at least 30 oz recovery tank
Choose neither. Each model fails one of those capacity requirements.
What matters in practice
How to make the call
Map the cleanup you repeat most often
If you often wash a small patch and then rinse it, SmartMix's water-only mode can reduce setup friction. If you usually cover a wider sofa area, Hoover's broad attachment may be the more useful difference. Both still require you to spray, scrub and extract by hand.
Watch the dirty tank
The two capacities move in opposite directions. Hoover starts with more clean liquid but offers less recovery capacity. Do not keep spraying simply because the clean tank still contains solution. Follow the dirty-tank fill line and stop when the recovery system calls for it.
Budget for maintenance after the stain is gone
BISSELL's self-cleaning tool and Hoover's hose-rinse tool help flush residue, but neither empties or dries the tanks for you. Rinse the removable parts and let them dry according to the manual. Formula choice and fabric compatibility remain more important than brand suction slogans.
What this comparison cannot tell you
- Tank arithmetic compares capacity only. It does not predict cleaning area, extraction efficiency, drying time or stain removal.
What the facts say
What the comparison shows
Useful conclusions from the current carpet cleaners comparison, followed by the checked facts used to reach them.
See the checked facts and calculation notes
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| BISSELL Little Green Max Pet SmartMix |
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| Hoover CleanSlate Plus |
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Ready to choose?
Check the price. Read the owner reviews.
Open either model on Amazon to check the current price, customer reviews and delivery options.
BISSELL Little Green Max Pet SmartMix
Switch from formula cleaning to water-only rinsing
See price & reviews on AmazonHoover CleanSlate Plus
Start with 40 oz of clean liquid
See price & reviews on AmazonLinks open in a new tab.