A large area of tea stains on the carpet how?? For a long time
Use a little vinegar or fresh lemon juice drops in the carpet stains, use a soft brush to brush, then use the carpet special foam detergent wash. The area is too big to come up several times. If it is a general chemical fiber carpet, this operation is no problem, if it is silk or wool carpet, it is recommended to look for professional carpet cleaning company deal with.
Use a little vinegar or fresh lemon juice drops in the carpet stains, use a soft brush to brush, then use the carpet special foam detergent wash. The area is too big to come up several times. If it is an ordinary chemical fiber carpet, this operation is not a problem, if it is a silk or wool carpet