I know three sites desparate to get rid of the stuff. One lady has a pile 12 foot by 12 foot by 12 foot, its ginormous, its the poo from 6 horses for the last two years.
Where in the Lincoln area!
PM me, ill give you phone numbers. There a pile at Billinghay and another pile at Reepham.
Theres also some stables at the back of the Grandstand on the West Common, they have bagged poo but they want the bags back same day.