Simple Water Gravity
This mod fundamentally changes the physics laws of liquids in Minecraft world - now water and lava sources obey gravity, just like ordinary sand. This behavior makes working with deep water bodies significantly more logical and predictable.
Liquid sources freely fall down until they find support in the form of a solid block or another source. Particularly interesting is that liquids can pass through the open sides of blocks that support water logging.

Theoretically, the modification can also work with fluids from other mods, extending the applied physics change to all game content.