Two things drove Suzanne of Sycamore Lane Therapeutic Riding Center to construct this O2Compost Cornerstone system. The facility is located next to a river, and she was paying a lot of money to have the manure from her 15 horses hauled away. The finished compost is shared (for free) with people in her community. Advice from Suzanne:  "It is important to make your farm green and protect the waterways from contamination."