Copper Pipes - great-big-world/concept-database GitHub Wiki
Type: Block
Subtype: Utility
Copper Pipes are a multi-use utility block.
Redstone
Copper Pipes can be filled with Redstone Dust, allowing Redstone wires to be laid underwater.
Farming
Copper Pipes can be filled with Water to sprinkle it over Farmland, keeping it moist. This can be automated with a Redstone Mill and an infinite Water source.