I've always pulled my soiled dried prairie grass bedding out into my run area for the chickens to help breakdown and play through for treats. We got a good amount of rain over this last week and now one certain spot smells putrid. What can I do besides pull everything out and start over? The base is round river Rock with sand and I have put the dried grasses over that. I've been moving the wet sand and rocks around a couple times a day to get it to dry out but it is still awful. Suggestions?