No. We fill our vans with water from our shop. Our equipment runs straight from the vans motor and we use a water and vacuum lines that run from the machine in the van to clean your carpets.
Typically a carpet takes between 6 and 8 hours to dry. During the winter months the drying process is expedited by the low humidity.
Most household cleaners will clean spots, but the detergent has to be removed from the carpet. We use a powerful vacuum and water extraction to remove any detergent from the carpet or furniture. The best way to clean a spot is water and if needed dish detergent. Dab at the spot with a clean white towel or paper towel to extract as much of the moisture and detergent as possible.
Using fans, dehumidifiers, AC, and any dry heat source will help the drying process. Anything to get the air moving around the carpet and help to process the moisture out of the room.
One that is used often! You don't need to buy an expensive vacuum to keep up the look of your carpet between cleanings. Any vacuum will work, as long as it is being used.
A spot is a mark of soil. It can typically be cleaned with hot water and detergent when extracted. A stain however is a mark that physically changes the fibers in a carpet. It can damage the colors or fibers itself, and therefore can not be cleaned out.