In such a case the carpet usually needs more than one cleaning to get the soil out.
Carpet stains come back after cleaning.
Some other reasons spots come back after carpet cleaning have to do with the natural layering of carpet and the wicking effect.
He came out and did some tests on my carpet and found that there was a lot of residue from the spot cleaning as well as a ph imbalance which was causing my carpet to yellow.
Wicking typically occurs when the carpet is wet.
These leftover particles become sticky little magnets to trap dirt dust and other particles.
When you spot treat a stain you are cleaning the surface of the carpet.
The new soil and dirt constantly coming through the door will continue to stick to the detergent residue.
Wicking this is when the carpet stain has soaked through to the backing of the carpet.
It s a new spot that was created due to incomplete spot cleaning.
Deep soil will rise to the surface after the cleaning.
If your carpet has brown spots after cleaning call back the company that you had clean your carpets.
When the remaining carpet cleaner is left to stew in your carpet it will begin to attract dirt debris and soil in the same spot making it appear like the same stain is coming back time and time again.
Other times the spots come back after several weeks have passed.
Due to the inefficiency of the steam cleaner sometimes the stain simply gets moved around or pushed deeper into the carpet rather than picked up.
When the carpets dry the stain comes right back to the top.
Carpet has a great ability to hide soil.
This action is very similar to what happens in the wick of a candle and is where the name originates from.
The residue left behind from spot cleaning causes new soil to stick an issue in high traffic areas.
They should come back out and re rinse the carpets with an acid rinse.
Spills that absorb deep into the backing or pad can get reabsorbed into the carpet fibers and make its way back up to the top of the fiber.
As dust dirt collect the spot appears as if the original stain has returned.
Sometimes spots can reappear as soon as the carpet dries.
The reappearance of spots and stains is actually a very common occurrence when a carpet is cleaned using a traditional shampoo and rinse method.
In short that mud stain by the front door will only reappear.
If spots and stains reappear weeks after you have cleaned your carpet excessive soap is likely to be the blame.
Residues causing soiling soiling is the result of residue left behind on carpet and rug fibers when cleaning products aren t completely rinsed and blotted dry.
But then the spill that is trapped in the backing and or underpad can be reabsorbed by the carpet and make its way up the fiber strands back to the surface like traveling up the wick of a candle hence the name.
When you clean the stain you are cleaning the surface of the carpet.
This sticky soap attracts more dirt and grime which cause the stain to reappear.