It looks like DD had a stealthy wee accident right next to our play mat. I found it yesterday but I suspect it was at least a day or two old, so when I lifted the mat it stank like ammonia.
I cleaned the tiles etc and took the mat outside (it's one of those expensive bubba mats), hosed it down then scrubbed with disinfectant. But it still smells! It has clearly soaked into the mat. How do it get rid of the smell?? It's such an expensive mat, I can't chuck it!