Hey there, so:
Fluid springs always generates a flat “pocket” in the borders of 1 chunk in modern GT versions
- Any type of stone could be around fluid springs “pocket”
- Well, that’s an GT fluid, which means it couldn’t be easy moved around, but I had already this topic here shows it could be released by Buildcraft’s floodgate. Most feature of this hot water - strong healing buff when you touch it
- Different liquids have their own physical parameters, gas will always go up, lava and oil goes down. GT fluids operates with values not with buckets\blocks as usual Minecraft water\lava do, that means while there is available connected space for placing created liquid - it will be generated. (example, of there is oil fluid spring, and you create a well 1x1 cube above it, it will fill all this well and start to radially spread at the surface)