Building a 100 x 200 Riding Arena
https://privatebin.net/?7f6f8d52db2addf6#7Pzezn3rnP78Yz7x4V23BdKEbYxVsM3daoEyayCN2RhP
A drainage system that is well-designed, carefully maintained, and has a long life and high functionality is essential to the longevity and performance of an arena