Talk:The Hallow/@comment-30262196-20170222173718/@comment-26440657-20171010011332

If your world isn't Crimson and the corruption is at 0%, it's probably a bug, try logging out of the game then find a floating island you could contaminate into Crimson/corruption then check if the Dryad lists that.

It's very, very hard to successfully clentaminate the whole world, if you miss a single infected block then it will spread again, making your effort useless. The best technique is to measure 110 blocks in the ground then dig a hellevator on both sides, dig a hellevator again every 110 blocks. The reason for that is because the Clentaminator has a range of 60 blocks, if you Clentaminate both sides of the 110 strip of land while you are going down the hellevators then you should be able to get every single block.