To remove the stain you should use a good commercial grade carpet spotting chemical to treat and work the areas.
Remove reappearing carpet stains.
What is the difference between soiling and wicking.
Removing reappearing carpet stains is a relatively simple process.
In most instances wicking will occur with carpet that is damp for a long period of time.
After treatment place a stack of paper towels or a clean white towel over the spot and use a stack of books or something heavy to weigh it down.
There are two possible reasons carpeting and rugs can be cleaned after a spill appear to be fine and then have the stain reappear later.
In drying the dirt that is hiding deep inside the carpet wicks up the fibers causing the stain to reappear.
This is caused by the residue from the cleaning solution used to remove the vomit stain being left on the carpet which causes dirt to stick to the area.
If you have a carpet stain that keeps coming back it probably needs to be re cleaned more thoroughly.
Two reasons carpet and rug stains reappear after cleaning.
Sometimes when the carpet is cleaned with a diy machine or by a cleaner that used too much moisture wicking will occur.
Basically wicking is caused by over wetting the carpet backer and pad.
The once deep stain rises to the surface where it becomes visible.
Solving a reappearing stain on carpet.
When you properly rinse a browned out stain with an acid rinse it should take care of the problem.
If you remove a stain only to have it reappear later after the spot has been walked on for awhile the new stain is actually from dirt.
Wicking happens when liquid penetrates the rug or carpet to reach the backing and or padding.
The best way to prevent stains from re appearing like a bad magic.
A reappearing stain called wicking may get removed from the surface with traditional cleaning methods but not from the carpeting or upholstery padding underneath.
Then as the moisture evaporates and the carpet dries this dirty water gradually wicks upward into the carpet fibers.
Reappearing stains can be prevented by ensuring that spills are treated as quickly as possible when they occur to prevent the spill from soaking deep into the carpet.
Soiling when you use a carpet cleaner on a stain and the carpet cleaner is not properly blotted or completely rinsed off from the spot it creates a problem called soiling.
Removing these stains from carpet or upholstery especially stains that have set in over time and keep returning to the surface can be frustrating.
Read more 10 reasons to love carpet preventing reappearing stains.
Spray the stain with carpet spotter.
If spots and stains reappear as soon as the carpet dries wicking is most likely to blame.