Apply vinegar mix to the stained area without soaking the.
Dying tan carpet to black smell.
Technically bleach does not stain a carpet.
If the stain was removed do not proceed to the next step apply ammonia mix to the stained area without soaking the carpet.
Watch for loss of color.
Bleach spots create areas of yellow white or a much lighter version of the original dye on the carpet which can detract from the beauty of the room.
After that you can rinse the area with cool water.
Step 4 wash the carpet.
Blot or gently stroke the carpet pile.
Use a brush if necessary to remove any stubborn dirt still clinging to the fibers.
Vacuum or blot up the excess.
Instead it strips the dye out of the carpet fibers leaving a mark.
So for 40 dollars worth of dye and my time i would give this dyeing thing a chance since i have seen what a properly dyed carpet looks like.
Another option is to use a home carpet cleaner aka a wet vacuum.
Allow the bleach to sit on the carpet for about 30 minutes to one hour.
Rinse the carpet by applying warm water without soaking the carpet.
Repeat the process until the stain and smell are removed.