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Water is a utility required for the following objects to function:

In order to supply water to an object, the object must have an activated water pipe in the same tile. Pipes become activated when they are connected through a continuous line of pipes to a Water Station.

Water Stations[edit]

A single Water Station can supply water to a practically infinite number of pipes. Because of this, and because Stations are prohibitively expensive, any prison should need only one Water Station. Unlike Power Stations, a Water Station will function the same way regardless of how many devices are piped into it. Water Stations require lots of electricity, and must be connected to a Power Station directly with electrical cable.


Water travels to the various objects in your prison through a network of Large Pipes and Small Pipes. Large and Small pipes will connect to each other without any restrictions, as long as they are in adjacent squares. In order to have water, an object must have a path of water pipes connecting it to the Water Station, plus enough water pressure to supply the object (see below). There are two types of pipes available.

  • Large Pipe Large pipes are generally used for transporting large amounts of water to buildings. COST: $15
  • Small Pipe Small pipes are generally used for transporting water within a building. It is significantly smaller and can transport a limited amount of water. COST: $2

Water Pressure[edit]

Water will travel through an infinite number of large pipes from a single water station. Small pipes, however, will decrease water pressure in a system, and too many small pipes can prevent an object from getting water. Water will pass through a maximum of 39 squares of small pipe before water pressure fails. The number of water-using devices connected to the pipeline has no effect on pressure.

Those 39 squares will reach fairly far. Most prisons should be able to get by on only one line of large pipe every 30-40 squares, and use small pipe for the rest. It is much more cost-effective to use as much small pipe as possible, as small pipes are over 86% cheaper than large ones.