Pasquale started marking when he was 6 months..i immediately scheduled him to be neutered and his marking almost stopped right after the neuter. (Knock on wood) He hasnt marked in the house since then....BUT he does like to mark when we go out places. I would use a belly band until you can get him neutered..like a diaper i would just check it every couple of hours to see if its wet and then change him. Good luck