I thought about making an item called a Pipe. It would haul Water/Lava from one place to another without the use for Buckets. Say you put a Cauldron on top of a Hopper and you use Pipes to run this combo to another Hopper going into a device called an Injector facing a Chest. You put water into the Cauldron, the Water gets sent through the Pipe and gets bottled by the Injector and Water Bottles are placed into the Chest. The Hoppers would be code upgraded to accept either items or fluids and have I/O behaviors. The Injector would need Glass Bottles or Buckets to work and the Pipe will need to be complete to work. To make suction in the Pipe, a Pump would be used to help get the water uphill/vertically. To continue the pressure, a Productor, something like a "Repeater Pipe" would be used. This would also refresh Redstone signals for Redstone Pipes, a Redstone infused pipe that carries current as well as fluids.