After a local builder recommended O2Compost, Michael H. constructed his Cornerstone system to compost manure and bedding from his 16 horses. A fourth bay was added to the original three-bay design to store shavings. Michael loves the convenience of having everything covered and in one place. He uses a manure spreader to apply the finished compost directly to the active pastures and "it works out beautifully. The composting has been great overall."