I came across a poly carpet today, light green and patterned. Around the door edges were brown lines, which despite trying an army of chemicals, could not shift. Most of the carpet had the same (but not so bad) yellow tinge. It came up ok and customer was pleased, but i was dissapointed with results.
the customer is a heavy smoker so i wonder if it could be nicotine. If so, has anyone had much success in removing it?
many thanks,
Ben