You can buy it at Pet Shops called Natures Miracle.  It will clean anything and get rid of the smell completely.  Be sure to shake it really well and use tons of it and let it sit a few minutes.  Poop usually takes a few applications but it will come out as it is an organic. Kids make mistakes while training even when they are older, it cant be avoided, it is part of having children.  It is just pee for goodness sakes!