Another common reason for returning spots after carpet cleaning is residue in the carpet.
Carpet cleaned then spot returns.
After cleaning a spot or stain from your carpet there are times where it will return just shortly after the carpet dries.
As carpet dries water evaporates from the tips of the carpet yarns drawing some of the remaining moisture behind it.
So it may come as a surprise when some of the spots return.
The reason the spots return has to do with the mechanics of capillary action.
At other times the spots and stains come back after the passing of a few weeks.
Now the remaining liquid will carry some of the spill back up to the carpet surface due to capillary action also called the wicking effect.
How to make sure a spot does not come back after cleaning.
Vigorous scrubbing could damage your carpet or upholstery.
Other times the spots come back after several weeks have passed.
Using a white cloth or towel depending on the size of the stain gently rub the area back and forth or in a circular motion so the water based cleaning mixture covers the entire stain.
Returning spots after carpet cleaning a manufacturing issue.
Wicking is one of the most common result of returning spots.
When spot cleaning yourself place a folded white terry cloth towel over the spot just after you clean it while the spot is still moist.
Either way it can be quite annoying to see spots and stains re emerge on a carpet you thought was just professionally cleaned.
This is most often a result of wicking which will be discussed below.
There are two primary causes of carpet re spotting.
Re soiling from various residues and soil wicking after carpet cleaning.
The good news is that if a spot actually wicks back it can be removed.
There are two reasons that this can happen.
One originates below the carpet fibers in the backing or pad of the carpet.
Say you use a fair amount of spot cleaner to clean up your spill and finish by blotting up the tips of the carpet fiber.
Sometimes spots can reappear as soon as the carpet dries.
When the carpet is cleaned it looks good.
These type of spots usually start out as a spill.
Do not scrub the area.
This is most often referred to as rapid resoiling.