Minecraft Version: 1.12.2

GrimPack Version: Grim_Pack_1.12.2-6.0.0.6

Forge Version: 2768

The video shows the process itself
https://i.gyazo.com/622342bbcf002c2d67d1f92112561901.mp4

Closing as GrimPack is no longer maintained.

This isn't really an issue in my eyes as that is how vanilla Minecraft works when mixing fluids.