Can commercial grade steam cleaners remove old semen stains from carpet?
Yes it can and get a good rug shampoo. If you are in the U.S., I don’t know if you have “Home Depot” there, but they put out a great machine and also sell the best carpet shampoo called “ZEP”. If your carpet is super dirty then it’s best to rent a commercial steam cleaner because they do a better job than the ones the consumer can buy. It isn’t very expensive and they may ask for deposit to be sure you bring it back.