Enable Waterlogging for Custom Blocks

Open the Configuration File

Locate configurablewaterlogging-common.toml in your mod config folder. Open it with any text editor.

Add Blocks to the Whitelist

Find the section where allowed blocks are listed. Add the block names you want to waterlog, one per line. For example, to waterlog wooden planks or stone bricks, type their exact block IDs.

Use Block Tags (Optional)

Instead of listing individual blocks, you can add entire block groups using tags. This is faster if you want to waterlog many similar blocks at once—for example, all wooden stairs or all concrete variants.

Reload Without Restarting

Save your changes to the file. In-game, run /cw reload to apply your new settings immediately. You don't need to close and reopen Minecraft.

Test Your Changes

Find one of your newly configured blocks and use a water bucket on it. If waterlogging works, the block will fill with water while keeping its solid appearance.