Modding Discussion Liquid Stopping Block

Hey everyone! I've got an idea/request for a mod that would introduce a block much like the bubble block from terraria, that would let entities through, but not any types of liquids, allowing for areas to be blocked off from fluids basically.

 

Bk3k has one in one of his mods, but idk the mod or if its still supported. It works tho

 

Oh! Thank you so much for showing me to this!

 

Yes I have that, and also some doors that block liquid for very simple underwater bases.