Here is how to use a spot cleaner: vacuum the area, extract any fresh spill, pre-treat tough stains, then spray, scrub and suction in slow passes before rinsing with clean water, according to tips from Vacuum Wars, an independent YouTube vacuum-testing channel that buys its products and says its reviews are unsponsored, Aaron’s Test Lab, a YouTube reviewer with two dogs and carpeted stairs in Seattle, and French Glow, a YouTube cleaning-product reviewer hosted by David.
Below is a step-by-step routine drawn from those testers, plus how cordless suction-only models differ, with spot cleaner prices on Amazon checked October 16, 2026.
How to use a spot cleaner: machines testers used
Prices checked on Amazon Oct 16, 2026. I may earn a commission from links, at no cost to you.
| Shark StainStriker HairPro PX251 | Bissell Little Green Pet Pro 3909 | Hoover CleanSlate Plus | Shark StainForce Cordless HX102 | Bissell Little Green Mini Cordless 4015 | |
|---|---|---|---|---|---|
| Type | Corded, dual-tank OXY mixing | Corded, 5.7-amp | Corded, 7-in WidePath tool | Cordless handheld, suction only | Cordless |
| Tank | 41 oz clean tank (Vacuum Wars) | 96 oz clean tank (French Glow) | 40 oz clean tank (listed) | Spray bottle + onboard dirty tank | See listing |
| Weight | About 8.2 lb (Vacuum Wars) | About 13 lb (French Glow) | About 9.4 lb (French Glow) | Under 3 lb (listed) | 7 lb (listed) |
| Notable | HairPro hair cage; onboard self-clean | 20-ft cord, 5-ft hose (French Glow) | 18-ft cord, 4.5-ft hose (French Glow) | Dual-chamber spray formula (listed) | Up to 20 min with BatteryBoost (listed) |
| Buy | Check price | Check price | Check price | Check price | Check price |
Step 1: Vacuum first
Aaron’s Test Lab said to vacuum whatever you are cleaning before you start; otherwise wet hair and dirt create a bigger mess. He used a cordless stick vacuum on his stairs before shampooing.
Step 2: Extract a fresh spill before spraying
If the stain is still wet, suction it up before spraying anything on it, Vacuum Wars advises. That removes as much of the spill as possible before you add more liquid.
Step 3: Fill the tanks correctly
Fill with water first, then add the formula, Aaron’s Test Lab said: adding water to soap created a lot of suds. On his Hoover CleanSlate, the solution tank has small and large dose lines, and he recommends the large dose for anything bigger than a small spot. On the Shark StainStriker, the main tank holds water and formula and a separate small tank holds the OXY Multiplier, Vacuum Wars explained. Bissell Pro models fill from a bottom cap, Just A Dad Approved showed.
Step 4: Pre-treat tough stains
Vacuum Wars said the shampoos included with spot cleaners usually are not strong enough on their own for the worst stains, and recommends an OXY-based pre-treatment spray left for about five minutes before scrubbing. On a Bissell HydroSteam, French Glow used a burst of steam as a pre-treat on sugary and oily stains.
Step 5: Spray, scrub and extract
Most spot cleaners spray solution under pressure when you pull the trigger, then you scrub with the brush and suction while tilting the tool, Just A Dad Approved showed. Aaron’s Test Lab held the spray trigger and pulled the wide tool backward across each stair. French Glow said to work in slow passes and use solution sparingly, since using a lot means more refilling, more emptying and longer drying.
Step 6: Rinse and extract again
Just A Dad Approved suggests a spray bottle of fresh water for a final rinse, then suction it up to remove leftover cleaner. French Glow described the full process as add water and solution, agitate, extract, then rinse with water and extract again, like a washing machine for fabric.
Choose the right tool
- Wide tools (7-inch on the Hoover CleanSlate) cover stairs two or three times faster, Aaron’s Test Lab said.
- Deep stain tools inject solution into fibers; French Glow called Bissell’s its favorite.
- Pet Stain Trapper keeps the worst messes out of the hose, Just A Dad Approved said.
- Hair tools such as Shark’s HairPro extractor funnel hair into a cage to help prevent clogs, Vacuum Wars said.
- Crevice tools work like a toothbrush for small stains, Aaron’s Test Lab said.
Using a cordless, suction-only spot cleaner
The Shark StainForce Cordless HX102 works differently: you spray Shark’s dual-chamber formula yourself, scrub, then tilt the tool to extract, Just A Dad Approved showed. He also used other carpet sprays with it and a water bottle to rinse. When finished, you fill the self-clean tray with water to the max line, set the tool in and run it, then take the parts apart to wash, including a hair catcher.
Step 7: Clean the machine
Run the hose rinse after every job. Aaron’s Test Lab ran his CleanSlate’s rinse attachment until clean water flowed into the dirty tank, and Shark’s StainStriker HairPro has a self-clean cycle for the hose and tools. On Bissell Pro models, Just A Dad Approved dipped the tool in a cup of water to flush the hose. French Glow said to clean the suction-port filters after every use.
Step 8: Dry and store
Leave parts out to dry before packing them away, Aaron’s Test Lab said, as Hoover recommends, since trapped moisture can grow mildew. Empty the dirty tank promptly; he found a toilet the easiest place to dump it.
Steam and stains
If you use a steam model such as the Bissell Little Green HydroSteam 3618, match the mode to the stain: Bissell’s chart, as French Glow read it, recommends steam for beverages, oily and sticky messes, and no heat for pet stains and dairy. See Bissell Little Green HydroSteam Review.
Quick checklist
- Vacuum the area first.
- Extract fresh spills before adding liquid.
- Fill water first, then formula.
- Pre-treat for about five minutes on tough stains.
- Spray, scrub, extract in slow passes.
- Rinse with clean water and extract again.
- Flush the hose and let parts air-dry.
To choose a machine, see Best Spot Cleaner.
Video: Aaron’s Test Lab: “Hoover CleanSlate Spot Cleaner Review”. Embedded with credit; the findings are the creator’s own.
Video: Just A Dad Approved: “Shark StainForce vs Bissell Little Green”. Embedded with credit; the findings are the creator’s own.
Frequently Asked Questions
How do you use a spot cleaner on carpet?
Vacuum, extract fresh spills, pre-treat tough stains, then spray, scrub and suction, and rinse with clean water, per Vacuum Wars, Aaron’s Test Lab and French Glow.
Should you pre-treat before using a spot cleaner?
Vacuum Wars recommends an OXY pre-treatment for about five minutes on tough stains.
Do you add water or solution first?
Water first, Aaron’s Test Lab said, to avoid suds.
How do you clean a spot cleaner after use?
Run the hose rinse or self-clean cycle, clean filters and let parts air-dry.
Can you use a spot cleaner on stairs?
Yes; Aaron’s Test Lab cleaned his carpeted stairs with a 7-inch CleanSlate tool.
Sources
- Amazon product listings for the products linked above, checked October 16, 2026
- Vacuum Wars: “Shark StainStriker HairPro Review”
- Aaron’s Test Lab: “Hoover CleanSlate Spot Cleaner Review”
- French Glow: “Shark StainStriker vs Bissell Little Green Pro vs Hoover CleanSlate”
- French Glow: “Bissell Little Green HydroSteam vs Little Green Pro vs Little Green Machine”
- Just A Dad Approved: “Bissell Little Green vs Hoover CleanSlate vs Little Green Pro vs SpotClean Pet Pro”
- Just A Dad Approved: “Shark StainForce vs Bissell Little Green”
Related: Best Spot Cleaner | Bissell Little Green vs Hoover CleanSlate | Shark StainStriker HairPro Review | Bissell Little Green HydroSteam Review
Notes and disclosure
Note: Prices come from Amazon listings checked on October 16, 2026. Prices change often, so check the current listing. Weights, tank sizes, cord lengths and motor ratings are the manufacturers’ listed figures unless a reviewer is credited. Reviewer stain tests reflect their own carpets, stains and methods. Always test a cleaning formula on a hidden area first and follow the care label on upholstery. Test results and tips quoted above come from the YouTube creators credited in each section; they are their findings, not hands-on claims from me.
Affiliate Disclosure: If you purchase an item through the links on this page, I may receive a commission, at no additional cost to you. Thank you for supporting the channel.