Talk:The Hallow/@comment-77.212.51.99-20111212050419/@comment-4514990-20111214033646

Vile powder will only revert the Hallow to regular terrain, and it will *not* make it corrupt, just purification powder will revert Corruption to regular terrain, but it will not make it Hallow.

Your only options are to either use unholy waters as I previously suggested or to plant corrupt seeds.