was asked 3 months ago to stainguard a brand new suite for a freind of mine, gave him a good price and heard nothing, saw him 2day and he now says he wants it done 3 months after purchase, he says its had throws over it so not dirty yet, so do i give it a good vaccuum then go ahead and spray or any other advise from you guys would be appreciated. ps havent seen it yet so dont know whether it has any soiling on it yet. over to you. cheers stu