Did you ever miss waterlogging on your server?
Give your blocks all the H₂O they deserve
Also supports frozen forms (snowlogging)
Pretty much like in vanilla, if you want a detailed list:
Note: Entity movement caused by flowing water logged blocks is NOT implemented and probably never will.
This plugin uses block layers to store information, while this is the intended storage by mojang, it is only poorly supported by pocketmine.
Removing this plugin will NOT remove waterlogged blocks. They remain saved in your world without any functionality.
Use BulkLayerEditor to remove them properly.