Things You'll Need
Wet/dry shop vac
Shop vac wand attachments
Carpet-safe spot cleaning soap
Soft-bristled scrub brush
For regular, everyday carpet cleaning, a traditional push vacuum is the best tool for the job. But if you have tough spots and stains, a wet/dry shop vac might be just what to need to get rid of them once and for all. Substituting your shop vac for a professional carpet steaming and cleaning machine can save you money on machine rental fees or if you're thinking of buying your own.
Video of the Day
Plug in your shop vac somewhere near the stain you want to clean.
Dampen the stained area with a little water, then work in a carpet-safe spot cleaning detergent. You should follow the specific instructions on whatever product you choose to use, but in general, the detergent should be scrubbed into the stained area using a soft-bristled scrub brush.
Attach a fine slotted attachment to the end of the shop vac hose and vacuum up the water and soap.
Dampen the area again and swish the area around with a paper towel if necessary to kick up any suds that remain.
Vacuum the area again until most of the moisture has been sucked out.
Repeat Steps 2 through 5 as needed to clean the stain completely, then allow the area to air dry.
Because shop vacs only have hose attachments and do not roll over carpeting, they are impractical for vacuuming an entire carpeted room. However, if this is the only vacuum you have, you can switch to the widest hose attachment you have and crisscross the entire room. If you must do this, push the attachment onto the carpet using some pressure so that you bend the carpet fibers in one direction, making it easier to see where you've vacuumed as you work your way through the room.
If your carpet isn't color-fast or you're planning on using a detergent that is not designed for cleaning carpets, you should test this method on an inconspicuous section of carpet first.