This guide will tell you how to use Pipes in Forever Skies to move water and fuel around on your ship along with Pipe Connectors, Cross Pipes, Water Tanks, and Fuel Tanks.

What Are Pipes Used For?
Pipes in Forever Skies are used for two things as of Version 1.0: automatically moving Dirty Water and automatically moving Fuel. While Fuel can only be used for your Airship's Engines, Dirty Water can be used for both cooking and farming.
Pipes, Pipe Sockets, and Cross Pipes must be crafted in advance and placed like furniture; they are not placed using the Airship Builder.
How to Use Pipes in Forever Skies
Here's how to use pipes and how they interact with Pipe Sockets, Cross Pipes, Water Tanks, and Fuel Tanks.
How to Use Pipes
Pipes will move Dirty Water or Fuel in one direction. Pay attention to the arrows on the Pipe to see which way the liquid will flow. Pipes must be attached to the floors or walls of your Airship; they cannot float in the air.
Pipes cannot pass through solid objects, including other Pipes. If you need Pipes to cross over, you should use a Cross Pipe. If a Pipe must pass through a wall, you should use a Pipe Socket.
A Pipe can only go from one source to one destination. There is no practical way to split Pipes into multiple sources.
How to Use Pipe Sockets
Pipe Sockets allow Pipes to pass through walls. As with Pipes, Pipe Sockets can only go in one direction; this is indicated by the arrows on the Pipe Socket:

You must then connect Pipes to either end of the Pipe Socket. The Pipe Socket will light up white when there's an active connection; its mate on the opposite side of the wall will light up yellow to show that there is a Pipe connected to it.
Pipe Sockets are mainly used to connect Pipe Water Generators (which must be placed outdoors) to Water Tanks and Sprinklers, and to connect Engines (which also must be placed outdoors) to Fuel Tanks.
How to Use Cross Pipes
Cross Pipes allow two Pipes to cross over one another — note the arrows on the image below:
Take care to notice that this shows two Pipes crossing over one another — the Cross Pipe is not a Splitter. A Pipe can only go from one source to one destination and that's it.
How to Use Water Tanks
Water Tanks can store Dirty Water. While you can fill them manually with bottles, it is much easier to automate the process using Pipe Water Generators. Here's how:
- Build a Pipe Water Generator on a Catwalk outside of your Airship
- Connect a Pipe from the Pipe Water Generator to a Pipe Socket in a wall
- Connect the other side of the Pipe Socket to a Water Tank on the inside of your Airship
Small Water Tanks have two connections for incoming Dirty Water and one connection for outgoing Dirty Water; Large Water Tanks have two connections for incoming Dirty Water and two connections for outgoing Dirty Water.
Once you've started collecting Dirty Water, you can then send the outgoing Dirty Water to Sprinklers for farming; check out our Farming Guide to learn how to use Sprinklers.
How to Use Fuel Tanks
Fuel Tanks are devices that can use Pipes to transport Fuel to Engines. Essentially, they give you additional Fuel Storage for your Improved Engines.
Improved Engines must be placed on an external wall in order for the Pipe connection to appear on the Improved Engines:

Each Fuel Tank can be connected to up to two Engines. A Fuel Tank has four inventory slots for Fuel. You can also Fuel the Improved Engines themselves; in essence, this doubles your Fuel capacity when you connect two Fuel Tanks to two Improved Engines, or triples it if you only connect one Improved Engine to a Fuel Tank.
You've reached the end of our guide on how to use Pipes in Forever Skies. Have a gander at our other guides below!