Ask them if they are using a truck mounted carpet cleaning process or not.
Brown spots after carpet cleaning.
A truck mounted system is more effective as it will have more airflow and lifts to remove water from your carpet.
Jute backings deteriorate in time and undergo chemical changes.
How can these brown spots be fixed.
These changes produce brown or red colorants lignin which can wick up to the face yarns and appear on the surface of the carpet after cleaning.
Cellulose carpet fibers in jute carpet are susceptible to discoloration when exposed to moisture come cleaning chemicals and slow drying.
Make sure that there will not be brown spots after carpet cleaning.
Another reason these brown stains occur is that dirt that is usually deep down in the carpet resurfaces as the carpet dries.
The age of the carpet is also important.
Carpet raking lifts the carpet pile allowing it to dry faster and leaves the carpet fluffy instead of matted and.
You may notice brown stains on your carpet after a thorough carpet cleaning.
They should come back out and re rinse the carpets with an acid rinse.
They should be able to get the remaining high ph out of the carpet bring things back into balance and get it looking great again.
These stains occur if there is too much cleaning solution and water used during the cleaning process.
If your carpet has brown spots after cleaning call back the company that you had clean your carpets.
As the carpet dries the brown or red color remains on the tips of the tufts.
To ensure that carpets do not develop this cellulose browning your carpet cleaning technician should do extra drying passes over the carpet.
Before hiring a carpet cleaner you should inquire about the drying process.
The carpet should also be raked with a carpet rake.
Aging jute fibers can produce brown or reddish colorants which wick to the carpet surface after cleaning.