There are 5 types of Waterproof pipes: wooden, cobblestone, stone, iron and gold. Waterproof pipes are made from normal pipes by adding waterproofing agent. Waterproof pipes can transport water, lava, Oil, and Fuel
Pipe placement is important. If you want to remove items from a furnace, for example, then a wooden pipe needs to be attached to the side of the furnace. A pipe connected to the top of a furnace places items into the top spot, and a pipe connected to the bottom of a furnace puts items into the bottom spot.
Wooden pipes are for taking items out of a container.(e.g. furnace, chest and other things that may hold items) Wooden pipes must be powered by an engine in order to transport items.
Cobblestone pipes are used for simple transportation of items. They will not connect to stone pipes.
Stone pipes are used for simple transportation of items. They will not connect to cobblestone pipes.
Iron pipes have only one output. It can be changed with redstone or a wrench.
Gold pipes can boost the speed of items passing through them when supplied with a redstone current.
Diamond pipes can filter items to different output pipes based on a user-defined filter.
Obsidian pipes will pick up items off the ground. Their collection range will increase when powered by an engine.
Wooden Waterproof Pipes are used to remove liquids from tanks. They are the only type of waterproof pipe that will actually pull liquids out of a container versus merely transporting them or delivering them to a container.
Cobblestone Waterproof Pipes transport liquid from tanks or pumps. They will not connect to stone waterproof pipes.
Stone Waterproof Pipes transport liquid from tanks or pumps. They will not connect to cobblestone waterproof pipes.
Iron Waterproof Pipes transport liquids, and have only one output. It can be changed with redstone or a wrench.
Gold Waterproof Pipes transport more liquid than stone or cobblestone waterproof pipes.